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Highway66
Honky Tonk @Highway66 2.1 k
@swathy.sara Mam wheres the question !! I wanted to clear my doubt. Kindly Pm me the question or post it again ! thank u :angry:

@swathy.sara Mam wheres the question !! I wanted to clear my doubt. Kindly Pm me the question or post it again ! thank u  



  • 1 Like   20Comments
  • @xeyeddiskthwrdont understand hindi... u r wondering abou.... 2m.
  • As time is same, so speed ratio = dist ratio = 7 : 5 so .... 19s.
  20 Comments
swathy.sara
Swathy Subramanian @swathy.sara 94

1) 12 min
2) 16 min
3) 24 min
4) 30 min
5) 36 min
6) 42 min
7) 48 min
8) 64 min
9) 74 min

swathy.sara
Swathy Subramanian @swathy.sara 94

@xeyeddiskthwrdont understand hindi... u r wondering about the no. of options right... its a Puzzle contest... not CAT problem...

Sabya1590
Sabyasachi Mukerji @Sabya1590 61

As time is same, so speed ratio = dist ratio = 7 : 5

so they will meet each other at 12 distinct positions in the track... hence at B they will meet again the 13th time

meeting time = 4 min

so after 12 such meetings i.e 12 * 4 = 48 mins they will again meet at B

ganapathy.1989
Ganapathy R @ganapathy.1989 22
Is this sentence correct? \- Historically, Eskimos did not use psychoactive plants because none of them grow in the Arctic.

Is this sentence correct?  - Historically, Eskimos did not use psychoactive plants because none of them grow in the Arctic.

 

Peter_Parkar
Prince Ganguly @Peter_Parkar 17
What %ile Do I need in CAT to secure a seat in IIMs while I have 42 months of working experience. Is it going to be a show stopper anyways? Thanks a lot Puys,

What %ile Do I need in CAT to secure a seat in IIMs while I have 42 months of working experience. Is it going to be a show stopper anyways?

Thanks a lot Puys,

  • Work ex: It wont be a show stopper in admission. Infact, .... 2m.
ashishsingh_courage
ASHISH SINGH @ashishsingh_courage 126

Work ex: It wont be a show stopper in admission. Infact, it will be helpful during admission, but your options in placement will be limited.

With new IIMs coming up, I wont be surprised if ppl get IIMs on 95 %ile. Also, it totally depends on the selection criteria. I got a call from IIM-S at 90.78 %ile  

thoma09
hanibwsa db @thoma09 9
remainder when 347^347 is divided by 100... show the process pls..


remainder when 347^347 is divided by 100... show the process pls..

  • 1 Like   13Comments
  • 63. 10h.
  • @Coolbud012 To find the last two digit of 47^27, Proceed .... 4m.
  13 Comments
saquib.hasan
Saquib Hasan @saquib.hasan 12

To those who do not know Euler, lets analyse this question in detail..

For any question to find a^p mod n where p and n are co-prime Euler can be applied.

For doing so, The Eulier tutient is to be found.

I discuss the method to find the Euler tutient with the help of the following example.

7^100 mod 66

66=2*3*11

Therefore, Euler Tutient= 66*(1-1/2)*(1-1/3)*(1-1/11)=20

Therefore, the question =7^20*5mod100, Thus according to Eulers thorem the remainder would be 1.

Now, applying the same rule to the given question.

Euer Tutient 0f 100=100*(1-1/2)*(1-1/5)=40

Therefore, 347^347=(347^40*8  * 347^27)/ 100

=1*347^27 mod 100=> 47^27mod 100

Find the last two digit of 47^27...That would be the ans

Hence 63 Ans

Coolbud012
Shivam Chopra @Coolbud012 6

@saquib.hasan - Thanks for in-depth explanation. I have doubt in last step.

47^27 = 01 * 47^3 = 09 * 47 = 23

If I solve it by simple way I get 63 but by this I'm getting 23...

saquib.hasan
Saquib Hasan @saquib.hasan 12

@Coolbud012 To find the last two digit of 47^27, Proceed the following way...

47^27=47^26  * 47=> 09^13 * 47

=> 81^6 *9 * 47

=81 *9*47

=63

Note: Last two digit of any number ending in 1 can be found in the following way:

The unit digit will always be 1.. The tens digit can be found by multiplying the tens digit of the number to the unit digit of the number in power.

Eg

512781^1237=....61 (AS 8*7=56, here we consider only 6 and then 1 in unit digit)

For any number ending in 3,7,9 try to bring the number in XXXX1 form and then apply the above rule

I hope that helps

appysingh818
Aparajita Singh @appysingh818
hey,can someone please send me alink to download the LR book by ARUN SHARMA

hey,can someone please send me alink to download the LR book by ARUN SHARMA


  • mail id batao i would mail you. 5m.
  • @sarshakti mail me too aniketdnandanwar@gmail.com. 4m.
sree1167
sree 1167 @sree1167 63
my father's income was below 6L p.a till last year.. but from this year his income is above 6L.. so do i belong to NC OBC or not?? plz answer

my father's income was below 6L p.a till last year.. but from this year his income is above 6L.. so do i belong to NC OBC or not?? plz answer

  • Salary of your dad should be above 6 lacs for 3 consecuti.... 33m.
  • ok thanks.. :smiley: it is not ablove 6L for three cons.... 13m.
Senraj
senthil nathan @Senraj 28

Salary of your dad should be above 6 lacs for 3 consecutive years.pl go to obcguru.com

sree1167
sree 1167 @sree1167 63

ok thanks.. it is not ablove 6L for three consecutive years.. 

EnglishGrammar
Surinder Mahna @EnglishGrammar 625
Find out error in the following sentence if any and mark Sr. no. of the relative part. In case of no error mark Sr no.4. Ignore punctuation error . *For more similar exercises **www.englishgrammarlesson.blogspot.com.* *EXERCISE NO. E. 202* *1\. The items we purchased 2. from the market to...


Find out error in the following sentence if any and mark Sr. no. of the relative part. In case of no error mark Sr no.4. Ignore punctuation error .

For more similar exercises **www.englishgrammarlesson.blogspot.com.

EXERCISE NO. E. 202

1. The items we purchased 2. from the market today 3.include furnitures and paintings for the living room.

60 people answered this question.
7 Comments
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Sabya1590
Sabyasachi Mukerji @Sabya1590 61
Got Q19 correct, still a -1 in stead of +3 :astonished:

Got Q19 correct, still a -1 in stead of +3


  • 1 Like   4Comments
  • CL walo have gone mad @jay3421 , My score cud hv gone up .... 1d.
  • do you mean , that you marked what is also mentioned in t.... 16m.
Sabya1590
Sabyasachi Mukerji @Sabya1590 61

CL walo have gone mad @jay3421 , My score cud hv gone up by 4 marks !!

akki26
akshay srivastava @akki26 310

do you mean , that you marked what is also mentioned in the solution key, but still got a -1 or do you disagree with CL soln ?

kingsly_333
kingsly jayanthan @kingsly_333 747
*Where are Diamonds found in India?*

Where are Diamonds found in India?


70 people answered this question.
3 Comments
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nil_desperandum
swati @nil_desperandum 23
Have to find the grammatically correct sentences here. A. Astronomers study objects and phenomenon which exist or have their origin in outer space. B. It is a popular misconception that astronomers devote their professional lives working late at night, peered intently through telescopes in lon...

Have to find the grammatically correct sentences here.

A. Astronomers study objects and phenomenon which exist or have their origin in outer space.
B. It is a popular misconception that astronomers devote their professional lives working late at night, peered intently through telescopes in lonely, cold observatories. 
C. In reality, astronomers generally spend no more than several weeks a year at an observatory or a satellite control station.
D. They are more likely at work in comfortable offices, laboratories, or research facilities. 
E. The modern astronomer uses research data to calculate the composition of galaxies, quasars, stars, and planets and to measure radio and infrared.

a.A & B      b.C, D & E       c. D           d.B & E       e.A & B

  • 20Comments
  • option B. 09 Aug.
  • In option a, shouldn't it be phenomena instead of phenome.... 33m.
  20 Comments
mahself.aadi
Aditya Verman @mahself.aadi 31

a is correct ... b --> peered , c --> not more than, e --> commas are missing .... d --> to work, or in research . I think its only a because b also seems incorrect ... Answer and explanation plz @nil_desperandum 

kinsuk
kinsuk ghatak @kinsuk 9

no more and not more what is the difference between them  ? ? 

Blossom16
Swati Khatter @Blossom16

In option a, shouldn't it be phenomena instead of phenomenon?

 Please add me 9894949375.

kanika10sharma
kanika sharma @kanika10sharma 219
new proc mock 2 has now been named 3 by cl? or hav i missED a mock :astonished:

new proc mock 2 has now been named 3 by cl? or hav i missED a mock

  • 8Comments
  • Thanks :smiley: but i have already taken it. 1h.
  • they are following TIME.. Have renamed unproc 1 as mock 2.... 1h.
  8 Comments
awesomearpit
ARPIT MOHAPATRA @awesomearpit 15
Something wrong with percentiles.....got 87 with score of 56 in 100 min!!!!

Something wrong with percentiles.....got 87 with score of 56 in 100 min!!!!

  • 7Comments
  • i thnk percentiles are in accordance with the scores...gt.... 13h.
  • @Sounak_buban yup thats true...but such high percentile...... 1h.
  7 Comments
Sounak_buban
Sounak DasGupta @Sounak_buban 18

i thnk percentiles are in accordance with the scores...gt 89.79 with 60 score

awesomearpit
ARPIT MOHAPATRA @awesomearpit 15

@Sounak_buban yup thats true...but such high percentile...with such ridiculous scores.....that's what i am shocked....

harshcat91
Harsh Vardhan Singh @harshcat91 2.0 k
TSD: PDF- Download link https://www.dropbox.com/s/j98eegi2iiazt59/TSD-Nitin.pdf In the entire TSD --- the only theory is D = S*T, the important thing is how you are going to use this formulae in different scenario. In cat 70% of the questions -- which had appeared can be solved using ----"Prop...

TSD:

PDF- Download link

https://www.dropbox.com/s/j98eegi2iiazt59/TSD-Nitin.pdf

In the entire TSD --- the only theory is D = S*T, the important thing is how you are going to use this formulae in different scenario. In cat 70% of the questions -- which had appeared can be solved using ----"Proportionality b/w Time, Speed and Distance" ----This is probably the most important topic in this chapter. And also the most thought-intensive. It provides the foundation to solve many tough problems orally!---- so today we will learn how to use this concept to solve Questions "ORALLY" --- in a minimum time--- so while solving the questions you all must try to solve orally ( means avoiding writing complicated equation) --- try solving by eq also --- you must mastered both techniques.

Usually in questions there are two scenarios. And in the two scenarios,
one among the three variables, S, D and T, is a constant. If one of these variables is a constant, we can use the proportionality relation among the other two to solve the question orally.

1) When speed is constant , D is directly proportional to T.
2) When Distance is Constant, S is inversely proportional to T.

We say that in questions there are two scenarios, it requires some efforts on your part to identify the two scenarios. The following are some common instances of how to tune your thought process towards identifying the two scenarios ......
(Complete questions are not given, just the crucial info is given, so don't be too argumentative about the conclusions)
1.Today I travelled 20 % faster from home to office ...
The two scenarios are 'everyday' and 'today'. And while it is directly given that speeds are not constant, you need to realize the stated assumption that distance covered, home to office, will not change between 'everyday' and 'today' and thus, distance is constant
2. Two friends started simultaneously from their homes towards each other to meet ......
The two scenarios are that of the two individuals. Since they start simultaneously and they meet, both of them are travelling for the same time. Thus, the time is constant when we consider the case of the two individuals separately. 3. A train takes 10 secs to cross a pole and 15 seconds to cross a platform ...... While we will see this scenario in details later on, the two scenarios are obvious - one is 'train crossing pole' and other is 'train crossing platform'. And in the two scenarios, the speed of the train is going to be constant. It will be on immense help to think on the lines of two scenarios. And then using proportionality. Most questions in the following text will be done by the traditional approach and then solved by the approach of using proportionality.

Distance being constant
Time is inversely proportional to speed, when distance is constant.
This is to say that, over a same distance, if the ratio of speeds is a : b, the ratio of the time taken will be b : a.
And this should be obvious, because over a same distance, if I double my speed (ratio of speeds 1 : 2), the time taken will be half (ratio of time 2 : 1).
If I travel at 1/3rd the usual speed (ratio of speed 3 : 1), I would take thrice the time taken earlier (ratio of time 1 : 3) If I reduce my speed to 3/5th of the usual speed (ratio of speed 5 : 3), the time taken will be 5/3 times the usual time (ratio of time 3 : 5).

Questions:

1. cat 2009 my set ----A boy walks at 1/3rd his original speed and reaches school 20 minutes late. Find the time taken by boy usually and the time taken at the reduced speed.( oral approach-- no pen pencil)

In such problems, 'late by 20 minutes' implies that 20 more
minutes will be taken to travel the same distance, or in other
words, the difference in the time taken at the usual speed and
the reduced speed will be 20 minutes.
Had my usual speed been s, the reduced speed would be 1/3s .
Thus the ratio of usual speed to reduced speed would be. (From
next problem onwards, this step will be done directly).
Since time is inversely proportional to speed, the ratio of the
time is 3 : 1. We also know that the difference in the time taken
will be 20 minutes. Thus we are looking for two numbers that are in the ratio 3 : 1
and the difference between them is 20 minutes. 3<------->1 ( there is a gap of 2 but we need a gap of 20 --> so multiply by 10) ---> 30<------->10.

2. Travelling at 3/7th of his usual speed, a person is 24 minutes late in reaching his office. Find the usual time taken by him to cover this distance. ( solve orally)

2. speed (3<------>7)====> time (7<------>3) gap 0f 4 but we need a gap of 24 so multiply ratio by 6 ===> 42-----18

3. If a man walks at the rate of 30 kmph, he misses a train by 10minutes. However, if he walks at the rate of 40 kmph, he reachesthe station 5 minutes before the departure of the train. Find thedistance to the station.

3.The ratio of speeds is 3 : 4 and since distance is constant, the ratio of the time taken will be in the ratio 4 . Missing the train by 10 minutes and reaching early by 5 minutes implies that the time taken at speed of 40 kmph is 15 minutes less than the time taken at speed of 30 kmph. Thus, we need to find two numbers in ratio 4 with a difference of 15. Thus, a difference of 1 on the ratio scale is a difference of 15 in actual values. Hence the multiplying factor is 15. Thus time taken at 30 kmph is 4 x 15 = 60 minutes and at 40 kmph is 3 x 15 = 45 minutes. now you can use d = s*t = 30 *60/60 = 30 km

4. A train meets with an accident and travels at 4/7th of its regularspeed hereafter and hence it reaches its destination 36 minutes late. Had the accident occurred 30 kms further, the train would have been late by only 21 minutes. Find the regular speed of the train.

4. Let's say the point where the accident occurred was A when the
train was late by 36 minutes and was point B when the train
was late by 21 minutes. Let the destination be D.
Comparison over distance AD: The two scenarios are 'at regular
speed' and 'at reduced speed'. Ratio of speeds 7 : 4. Ratio of
time 4 : 7. Difference in time is 36 minutes. Thus, time taken at
regular speed for the distance AD is 4 x 12 = 48 minutes.
Comparison over distance BD: The two scenarios are 'at regular
speed' and 'at reduced speed'. Ratio of speeds 7 : 4. Ratio of time
4 : 7. Difference in time, over this distance is 21 minutes. Thus,
time taken at regular speed for the distance BD is 4 x 7 = 28
minutes.
At it's regular speed, the train takes 48 minutes to travel A to D
and takes 28 minutes to travel B to D. Hence it must be taking
20 minutes to travel from A to B, a distance of 30
kms. Thus, it's regular speed = 30/(20/60) = 90 km/hr

4. Shortcut:
While in the above solution we had the comparisons (at regular speed & at reduced speed) made twice, once over distance AD and once over distance BD. We could make do with just one comparison as well.
Consider the stretch AB. When accident occurs at A, this stretch is travelled at reduced speed. And when accident occurs at B, this stretch is travelled at regular speed. And the difference in the time taken just over this stretch is 36 - 21 = 15 minutes. (At destination,
why is the train less late, 21 mins, when accident occurs at B as compared to more late, 36 mins, when accident occurs at A? The train would have been lesser late because, over AB, it would have not have got late) Comparing the two scenarios, ratio of speeds over AB is 4 : 7. Hence ratio of time will be 7 : 4 and difference in time taken over AB is 15 minutes. The multiplying factor to go
from ratio scale to actual values will be 5. Thus, at regular speed it would take 4 x 5 = 20 minutes to cover AB, a distance of 30 km.

5. Find the total distance in previous Question no.4

5. To late by 15 min--- distance travelled is 30: so to late by 1 min -- distance travelled is 30/15 = 2 ; so to late by 36 min( since beginning) --- distance travelled is 36*2 = 72 km

6. If a man cycles at 10 km/hr, then he arrives at a certain place at 1 p.m. If he cycles at 15 km/hr, he will arrive at the same place at 11 a.m. At what speed must he cycle to get there at noon? ( cat 2004)

6. ratio of speed--- 10:15= 2:3 ===> ratio of time ---3:2 ( there is a gap of 1 but we need a gap of 2hrs as 11am &1pm) so time is 6hrs & 4hrs. now let speed at 12noon is " s" ----> 10/s =5/6 ===> s= 12km/hr

7.Arun, Barun and Kiranmala start from the same place and travel in the same direction at speeds of 30 km/hr, 40 km/hr and 60 km/hr respectively. Barun starts two hours after Arun. If Barun and Kiranmala overtake Arun at the same instant, how many hours after Arun did Kiranmala start? (cat 2006)

let A,B,K represents speed & a,b,k Represents time of Arun, Barun & Kiranmala respectively. Here distance is constant (1) A/B = b/a ===> b/a = 3/4 ( gap of 1 but we need gap of 2--- as barun started 2 hrs late) so b= 6, a =8 ; (2) A/K =k/a ===> 30/60 = k/8 ==> k = 4hr ===> kiran mala started 4hrs late.

Time being constant
Distance is directly proportional to speed, when the time is same
This is to say, if time is constant and the ratio of speeds is a : b, the ratio of the distance covered will also be a : b.
The most common case of time remaining same would be when two
persons, trains or objects start from two points simultaneously and meet each other. In this case the time that the two objects are traveling is the same for both the objects. So they will cover distances in proportion to their speeds.

8. The Ghaziabad-Hapur-Meerut EMU and the Meerut-Hapur-Ghaziabad EMU start at the same time from Ghaziabad and Meerut and proceed towards each other at 16 km/hr and 21 km/hr, respectively. When they meet, it is found that one train has travelled 60 km morethan the other. The distance between two stations is:[IIFT 2007]1) 445 km2) 444 km3) 440 km4) 450 km

8. distance is constant , s1/s2 = d1/d2 ===> d1/d2 = 16/21 ( there is a gap of 5-- but we need gap of 60 so multiply by 12) d1= 16*12 &d2=21*12 ..total = 444

9. Two trains start simultaneously, one from Bombay to Kolkata And other from Kolkata to Bombay. They meet each other at Nagpur which is at a distance of 700 kms from Bombay. If the distance between Bombay and Kolkata is 1600 km, find the ratio of their speeds.

9. Since the trains started simultaneously, the time they have been
traveling till they meet is equal. And hence the distance they
cover will be in ratio of their speed. Since the train from Bombay
has covered 700 km and the train from Kolkata has covered
1600 - 700 = 900 kms, the ratio of their speeds will be 700 :
900 i.e. 7 : 9.

10. A police-man starts chasing a thief. The ratio of the speeds ofthe thief and the policeman is 9 : 11 and when the policemancatches the thief it is found that the policeman has covered 60meters more than the thief. How much distance did the policehave to run to nab the thief?

10. Since the chase starts with both of them running simultaneously, from this point onwards to the time the police has caught the thief, they are running for same duration. Thus the distance covered will be proportional to their speeds. So we are searching for two distances in the ratio 9 : 11 and the difference being 60 meters i.e. 2 of the ratio scale corresponds to 60 mts, implying that the multiplying factor is 30. Hence
distance run by police will be 11 x 30 = 330.

11. In the movie Ghulam, Aamir is able to spot the approaching train when it is 2 km away. He has to run towards the train and reach the red kerchief hung on a pole 400 meters away from him before the train reaches the pole. How fast must Aamir run if the speed of the train is 36 kmph so that he just manages to reach the kerchief at the same time as the train reaches it?

11. From the point when the distance between them is 2000 m, Aamir has to cover a distance of 400 m and the train will cover the rest of the 1600 m i.e. the distance will be in the ratio 1 : 4. Since they are running for the same duration, the speed will be proportional to the distance covered. Since the speed of the train is 36 kmph, the speed of Aamir should be 9 kmph.

Speed being constant
Distance is directly proportional to time when speed is constant
At same speed, if the ratio of speed is a : b, the ratio of time will also be a : b.
By now, you would have got the hang of solving questions based
on proportionality and thus we will solve just one example for this
proportionality.

12. A car overtakes an auto at point A at 9 am. The car reachespoint B at 11 am and immediately turns back. It again meetsthe auto at point C at 11:30 am. At what time will the autoreach B?

Since the car takes 2 hours to travel AB and 0.5 hours to travel BC, The ratio of the distances AB : BC will be 2 : 0.5 i.e. 4 : 1. (Distance is proportional to time)
Since C lies in between A and B, the ratio of the distance AC to CB will be 3 : 1.
The auto has traveled AC in 2.5 hours (from 9 am to 11:30 am). To travel CB (one-third distance of AC) he will take 2.5 hrs /3 =150 min/ 3 = 50 more minutes.
Thus the auto will reach B at 12:20 pm.

13. There is a tunnel connecting city A and B. There is a CAT which is standing at 3/8 the length of the tunnel from A. It listens a whistle of the train and starts running towards the entrance where, the train and the CAT meet. In another case, the CAT started running towards the exit and the train again met the CAT at the exit. What is the ratio of their speeds?[CAT 2002]

here time is constant----> so use s1/s2 = d1/d2 ; let speed of train be x ... when train runs x then cat runs 3 and when cat runs5 the tran runs x+8 equae it x=12 ratio of speeds =12:3 i.e. 4:1.

14. Only a single rail track exists between station A and B on a railway line. One hour after the north bound superfast train N leaves station A for station B, a south passenger train S reaches station A from station B. The speed of the superfast train is twice that of a normal express train E, while the speed of a passenger train S is half that of E. On a particular day N leaves for station B from station A, 20 minutes behind the normal schedule. In order to maintain the schedule both N andS increased their speed. If the superfast train doubles its speed, what should be the ratio (approximately) of the speed of passenger train to that of the superfast train so that passenger train S reaches exactly at the scheduled time at the station A on that day? [CAT 2002] 1) 1 : 3
2) 1 : 4
3) 1 : 5
4) 1 : 6

Let the speed of superfast & passenger train is N & S respectively. Since there is one single track so combined time taken by superfast & passenger train is !hr. Ratio of speed N/S = 4:1 ===> ratio of time = 1:4===> time taken by superfast train = 1/5*60 = 12 min & time taken by passenger train = 48 min. Now one day train started 20 min late --since speed of superfast is doubled time taken is --6 min . so time taken by passenger train to reach on time = 60 - (20+6) = 34 min : so new ratio is 6:34 = 1:6 (approx)

15. Two boats start from opposite banks of river perpendicular to the shore. One is faster then the other. They meet at 720 yards from one of the ends. After reaching opposite ends they rest for 10mins each. After that they start back. This time on the return journey they meet at 400 yards from the other end of the river. Calculate the width of the river.Also find ratio of speed of boats.

15. when they meet for the first time , together they will cover 1 round in which 1st boat will contribute 720; when they meet for the 2nd time together they will contribute 3 round -- so contribution by 1st boat is 720*3 =2160 ,but since they are meeting from other end . so length is 2160-400 = 1760

15. Alternative method: he distances traveled by the boats are proportional to their speeds___ since the speeds are constant, the ratio of the distances is constant let w="width of river" ___ river is >720 yd wide let x and y be the boat distances at first meeting ___ x=720, y=w-720 at second meeting ___ x=w+400, y=2w-400 ratio of distances is constant, so 720/(w-720)=(w+400)/(2w-400) on solving this W = 1760

-Taken from Aug 18th Session on

Problems on proportionality between time, speed & distance

 

Nitin Gupta - Founder of Alpha numeric



  • 5 Likes   7Comments
  • @harshcat91 ______/\\_____ thanks :-). 11h.
  • @harshcat91 whenever you upload a pdf please let me know .... 1h.
MissionXLRI
ROHIT GUPTA @MissionXLRI 299
QA: 27/33 = 75 VA: 19/30 = 46 OA: 46/63= 121

QA: 27/33 = 75

VA: 19/30 = 46

OA: 46/63= 121

  • This is the old pattern thread. Use this instead. http:.... 1h.