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NinjaTurtle
Rishabh @NinjaTurtle 47
Posted 35m ago
How many of the first 1200 natural numbers are either prime to 6 or to 15? How to solve it puys? (taken it frm a website)


How many of the first 1200 natural numbers are either prime to 6 or to 15?

How to solve it puys?
 (taken it frm a website)

  • 24 Comments
  • http://totalgadha.com/mod/forum/discuss.php?d=1483 @Nin.... 3m.
  • coprime nos to 6 in 1200 => 6=2*3.... so 1200(1-1/2)(1-.... 1s.
  24 Comments
krishna000
krishna yadav @krishna000 90

15 and 6 both ke coprime nikalna h esliye  2 se multiply kiya h.

aditya0788
Aditya sinha @aditya0788 85

coprime nos to 6 in 1200 =>

6=2*3.... so 1200(1-1/2)(1-1/3) = 400------1

coprime nos to 15 in 1200 => 1200*(1-1/3)(1-1/5) = 640-----------2

Now in 1and 2 both coprime to 6 and 15 are counted which are,

1200(1-1/2)(1-1/3)(1-1/5) = 320--3

320 is counted in both 400 and 640 so 400-320 + 640 - 320 = 400


swapnil4ever2u
Swapnil Jha @swapnil4ever2u 1.2 k
Posted 3m ago
I learnt it somewhere , wanted to share it : example 1 => trick for a<= b<= c<= d<= ....<=n number of ways in which 5 numbers or n numbers can be selected from 1 to 9 , such that a<= b <= c <= d <= e is 13C5 solution : a will always be less than b+1 b will always be less than C+1 c < d...

I learnt it somewhere , wanted to share it : 

example 1 => trick for a<= b<= c<= d<= ....<=n

number of ways in which 5 numbers or n numbers can be selected from 1 to 9 , such that a<= b <= c <= d <= e

is 13C5

solution :

a will always be less than  b+1 

b  will always be less than C+1

c < d+1 and so on

in short ,

a < b+1 < c+2

as max value is 9 , so , e+4 can be 9+4 = 13 maximum

in short , select any 5 numbers from 1 to 13 viz 13C5  

mba-yes
mba yes @mba-yes 10
Posted 17 Jul
Any classroom students from byju here ?? Need some urgent advice !!

Any classroom students from byju here ?? Need some urgent advice !! 

  • ok ask !. 3m.
sumeetk
SUMEET KAUR @sumeetk
Posted 6m ago
I want to do bba .can any one tell which college is best among 1) maharaj agressrn or jims kalkaji???? Its urgent!!!!

I want to do bba .can any one tell which college is best among 1) maharaj agressrn or jims kalkaji???? Its urgent!!!!

rupsidas
Rupsi Das @rupsidas
Posted 15m ago
I need help!!!! I am appearing for CAT for the first time and I am not really hoping for IIM-A,B,C. My aim is new IIMs maybe MDI being realistic this way. Well my minimum benchmark is IMT. Well, I was getting okayish marks previous mock tests but last two SIMCAT literally crashed my realistic dre...

I need help!!!! I am appearing for CAT for the first time and I am not really hoping for IIM-A,B,C. My aim is new IIMs maybe MDI being realistic this way. Well my minimum benchmark is IMT. Well, I was getting okayish marks previous mock tests but last two SIMCAT literally crashed my realistic dream. I need to know how should I prepare from now on. I have completed 1 quant book from TIME materials 1201 and working on 2nd one(Probability and number are my biggest fears) and I have almost completed Arun sharma except for LOD-3. Here are my mock cat scores...Please reply...

AIMCAT1518- (QA/DI) C 13 W 1 (VA/LR) C 7 W 8 OA 51 (82.53%le)

(VA was cruel this time)

AIMCAT1515- (QA/DI) C 16 W 0  (VA/LR) C 10 W 2 OA  76 ( 96.67 %le)

SIMCAT2-(QA/DI) C 8 W 2 (VA/LR) C 14 W 7 OA 57 ( 91.63 %le)

SIMCAT3-(QA/DI) C 12 W 1 (VA/LR) C 15 W 7 OA 73 ( 97.17 %le)

SIMCAT4-(QA/DI) C 7 W 3 (VA/LR) C 10 W 3 OA 45 (  87.17 %le) (gave after proctored test date and after work so too tired to give it)

SIMCAT5-(QA/DI) C 12 W 0 (VA/LR) C 15 W 5 OA 76 (  90.10 %le)

SIMCAT6-(QA/DI) C 6 W 5 (VA/LR) C 10 W 4 OA  39 (  72.10 %le)

SIMCAT7 (QA/DI) C 8 W 5 (VA/LR) C 7 W 8 OA 32

  • Please any one need help!!!!. 7m.
dazzysen
sonal kanchan @dazzysen 9
Posted 3h ago
Walpole's art collection was huge and fascinating, and his novel " the Castle of Otranto" was never out of print; none of this mattered to the Victorians, who ______________ him as , the best, ______________. A) Dismissed....insignificant B) Judged....worthwhile C) Revered...talented ...


Walpole's art collection was huge and fascinating, and his novel " the Castle of Otranto" was never out of print; none of this mattered to the Victorians, who ______________ him as , the best, ______________.

A)

Dismissed....insignificant

B)

Judged....worthwhile

C)

Revered...talented

D)

Reviled...meager

  • 20 Comments
  • AnS d......, even I also marked A. 1h.
  • @jay3421 Where can i get solutions for the doc u gave ?. 13m.
sukhmeenkr
@sukhmeenkr
Posted 15m ago
what will be the pattern of the various test series offered by the coaching institutes now tht the CAT pattern has changed? Wil it b of any use if we take the old test series?

what will be the pattern of the various test series offered by the coaching institutes now tht the CAT pattern has changed? Wil it b of any use if we take the old test series?

afafakhter
afaf akhter @afafakhter
Posted 3d ago
can any one please let me know about the question paper pattern of cat?

can any one please let me know about the question paper pattern of cat?

  • nice. 23m.
  • @rahulgf4 ff. 23m.
SIIB-Pune
Symbiosis Institute of International Business @SIIB-Pune 1.1 k
Posted 11h ago
In recent times, which among the following blocks of countries is pushing for implementing the UN Security Council reforms?

In recent times, which among the following blocks of countries is pushing for implementing the UN Security Council reforms?

35 people answered this question.
1 Comments
You can view the comments after answering or skipping this question.
TerrificTT
TT @TerrificTT 1
Posted 10h ago
Hey guys with the recent change in online mocks of CL according to the new pattern of CAT-2014 the previous ones have been removed,so can anyone provide me with those previous mocks (*proctored* or *unproctored*) for download as I had not given many of those unproctored.

Hey guys with the recent change in online mocks of CL according to the new pattern of CAT-2014 the previous ones have been removed,so can anyone provide me with those previous mocks (proctored or unproctored) for download as I had not given many of those unproctored.

  • 1 Like  
  • #following. 10h.
  • they are available now... 39m.
harshcat91
Harsh Vardhan Singh @harshcat91 1.8 k
Posted 6d ago
#DI https://38.media.tumblr.com/e316c8887522a4a04056b8c593a4fcb0/tumblr_n94a5nsAA81tcrq1uo1_1280.png
  • 17 Comments
  • @baks post oa. 11h.
  • IMO ....same as you guys said 1\. 4 2\. 2 3\. 2 4\. 1.... 55m.
abrahamwilliam
abraham william @abrahamwilliam 1
Posted 1h ago
can someone plz help me with this ques: If you write all the natural numbers from 10^5 to10^6 (inclusive), how many times will you write zero?


can someone plz help me with this ques:

If you write all the natural numbers from 10^5 to10^6 (inclusive), how many times will you write zero?

  • 3 Comments
  • 4.5*(10)^5. 1h.
  • @sagarcat sir!!. 1h.
devansh1221
devansh doshi @devansh1221 315
Posted 19 Jan '12
Can I have some material on the tones of RC's. What do the various terms mean.
Can I have some material on the tones of RC's.
What do the various terms mean.
  • Refer TIME RC book if u can. 1h.
lipika55
Lipika Priyadarshini @lipika55 1
Posted 3d ago
There are three liquids X,Y and Z. Cost price of 100ml of liquid X and selling price of 100ml of liquid Y are the same, which is Rs 500. Liquid X, when sold yields a loss of 10% and Liquid Y, when sold, yields a profit of 10%. Z's cost price and selling price are the same, which is Rs 500 for 100...

There are three liquids X,Y and Z. Cost price of 100ml of liquid X and selling price of 100ml of liquid Y are the same, which is Rs 500. Liquid X, when sold yields a loss of 10% and Liquid Y, when sold, yields a profit of 10%. Z's cost price and selling price are the same, which is Rs 500 for 100ml.Three types of products(P1,P2,P3) are prepared in following manner-

1. P1 contains X and Y in the ratio 3:2 by volume.

2.P2 contains X and Y in the ratio 2:3 by volume.

3. P3 contains only Z

The selling price of each of the products is the aggregate sum of the selling price of the individual components.

Q1- A new mixture is formed by mixing 100ml of each of three products P1, P2 and P3. What will be the profit/loss, if this new mixture is sold?

-Loss Rs4.54

-Profit Rs 4.86

-Profit Rs 3.53

-Loss Rs 3.53

Q2- If 341ml of P1 was sold, then profit/loss would be

-1%loss

-2.5%loss

-1%profit

-2.5%profit

  • 4 Comments
  • Solution for the first question ??? I am getting 4.86 loss. 1d.
  • pls explain approach. 1h.
shashwatdgr8
Shashwat Gangwar @shashwatdgr8 225
Posted 1d ago
Just got the news that New CAT will be implemented from AIMCAT 1513 onwards (y) The schedule of the AIMCATs will change so no booking of slots on monday.

Just got the news that New CAT will be implemented from AIMCAT 1513 onwards (y) 

The schedule of the AIMCATs will change so no booking of slots on monday.

  • 1 Like   7 Comments
  • @MJ477 , all bank exams have the same interface , TCS on.... 4h.
  • @siddhantm Hope so there will be positive changes :stuck.... 1h.
  7 Comments
siddhantm
siddhant mohanty @siddhantm 400

@MJ477  , all bank exams have the same interface , TCS only conducts them , so they are predicting it to be the same , btw they just missed this very imp factor that , bank exams hardly charge , 500/- and CAT 1600/- , so kuch toh change hoga apart from the austere invigilation.