Quant by Arun Sharma

sid_roy09 · June 23, 2012, 3:44pm

yaar,
Answer for
1)"this is not possible "as per arun sharma's quant
2)42^3.

pls let me know if u can try q1 again.

Oh yes , Its was a mistake. The first case is not possible 😃

sjain2009 · June 23, 2012, 4:33pm

1144 = 8*11*13.
777 mod 8 = 1.
429 mod 6 = 3.
777 mod 11 = 7.
777 mod 13 = 10.
So, remainder would be of the form 8k+1 = 11p+7 = 13x+10. Now check with options for a number of that form.

Hi

Could you please help me in understanding the application of 'mod' in finding out the remainder or in other cases, if any.

I've tried understanding it online, but didn't work. Your help would be highly appreciated.

Thanks
Sachin

viewpt · June 23, 2012, 6:36pm

Hi

Could you please help me in understanding the application of 'mod' in finding out the remainder or in other cases, if any.

I've tried understanding it online, but didn't work. Your help would be highly appreciated.

Thanks
Sachin

bone_machine · June 23, 2012, 7:08pm

help needed in solving alligation prob.

how many kilogram of sugar worth rs 3.6/kg should be mixed with 8kg of sugar worth rs 4.20/kg such that selling mixture at rs 4.40kg.there may be gain of 10%

a)6kg b)4kg c(3kg)

please explain the process

akittu · June 24, 2012, 5:02am

help needed in solving alligation prob.

how many kilogram of sugar worth rs 3.6/kg should be mixed with 8kg of sugar worth rs 4.20/kg such that selling mixture at rs 4.40kg.there may be gain of 10%

a)6kg b)4kg c(3kg)

please explain the process

sp = 4.4/kg at 10% profit on cp(x)

hence 110/100 * x = 4.4
x = 4/kg
cp = 4/kg

3.6 4.2
4
0.2 0.4
? kg 8 kg

hence ratio 1:2

since 8kgs of 4.2/kg sugar
therefore 4 kgs of 3.6/kg sugar.

enceladus · June 24, 2012, 7:40am

help needed in solving alligation prob.

how many kilogram of sugar worth rs 3.6/kg should be mixed with 8kg of sugar worth rs 4.20/kg such that selling mixture at rs 4.40kg.there may be gain of 10%

a)6kg b)4kg c(3kg)

please explain the process

CP of the mixture -> 1.1x = 4.4
=> x = 4.

3.6 ...... 4.2
.......4........
0.2 ...... 0.4

Ratio = 1:2.
When 2 is 8, then 1 would be 4.
Hence, 4kg.

OR.

4(x+8 ) = 3.6x + 33.6
=> x = 4.

mklchandra · June 24, 2012, 11:06pm

M is a two digit number which has the property that the product of factorials of it's digit> sum of factorials of its digits. how many value of M exist?
1.56
2.64
3.63
4.None
Cpt: clearly numbers containing 0 or 1 won't satisfy above condition.My calculation indicate to 64 as answer,but in Arun sharma ans is 63. some1 clarify.
total 2 digit no =90
10,20,30...90=9, 11,21,31...91=9 12,13...19=8
ans=90-9-9-8=64.

ziddiarmaan · June 24, 2012, 11:28pm

M is a two digit number which has the property that the product of factorials of it's digit> sum of factorials of its digits. how many value of M exist?
1.56
2.64
3.63
4.None
Cpt: clearly numbers containing 0 or 1 won't satisfy above condition.My calculation indicate to 64 as answer,but in Arun sharma ans is 63. some1 clarify.
total 2 digit no =90
10,20,30...90=9, 11,21,31...91=9 12,13...19=8
ans=90-9-9-8=64.

22.. here the product = sum of the factorials :)

i guess u missed this 1

anujcat · June 25, 2012, 7:22am

The answer is pretty simple

6C2 * 4C2 * 4! * 4!

nitish_negi · June 25, 2012, 1:16pm

alord got an order from a garment manufacturer for 480 denim shirts. He bought 12 sewing machines and appointed some expert tailors to do the job. However, many didn't report for duty. As a result,each of those who did,had to stitch 32 more shirts than originally planned by Alord,with equal distribution of work. How many tailors had been appointed earlier and how many had not reported for work?
(a) 12,4
(b) 10,3
(c) 10,4
(d) none of these

rakeshkr579 · June 25, 2012, 1:21pm

alord got an order from a garment manufacturer for 480 denim shirts. He bought 12 sewing machines and appointed some expert tailors to do the job. However, many didn't report for duty. As a result,each of those who did,had to stitch 32 more shirts than originally planned by Alord,with equal distribution of work. How many tailors had been appointed earlier and how many had not reported for work?
(a) 12,4
(b) 10,3
(c) 10,4
(d) none of these

check by options-------took 25 secs

c)10,4

nitish_negi · June 25, 2012, 1:33pm

check by options-------took 25 secs

c)10,4

okay. But i don't get the concept.

vyomconfused · June 25, 2012, 1:38pm

alord got an order from a garment manufacturer for 480 denim shirts. He bought 12 sewing machines and appointed some expert tailors to do the job. However, many didn't report for duty. As a result,each of those who did,had to stitch 32 more shirts than originally planned by Alord,with equal distribution of work. How many tailors had been appointed earlier and how many had not reported for work?
(a) 12,4
(b) 10,3
(c) 10,4
(d) none of these

c is the answer....better to go with options
let original worker be 10 so they will do work equally like 480/10 = 48 denim jeans will be made by each of them but 4 didn't arrived so now 6 workers will make 480/6 = 80.

nitish_negi · June 25, 2012, 1:58pm

c is the answer....better to go with options
let original worker be 10 so they will do work equally like 480/10 = 48 denim jeans will be made by each of them but 4 didn't arrived so now 6 workers will make 480/6 = 80.

vyom,thanks. May be had not understood the question properly. Thanks again.

nitish_negi · June 25, 2012, 2:13pm

how many 3 digit even numbers can be formed such that if one of the digits is 5, the following digit must be 7?

The answer is 365. I have understood that 5 combinations can be 570, 572, 574, 576 and 578. But how other 360 combinations are formed. I have forgotten permutation and combination.

vyomconfused · June 25, 2012, 2:21pm

how many 3 digit even numbers can be formed such that if one of the digits is 5, the following digit must be 7?

The answer is 365. I have understood that 5 combinations can be 570, 572, 574, 576 and 578. But how other 360 combinations are formed. I have forgotten permutation and combination.

see here two cases will be formed:
Case I: when 5 is at 100's digit so 5 7 x here x can take 0,2,4,6,8 so 5 values.

Case II: when three digit number does not contain 5 so so unit digit can be used in 5 ways,
ten's digit in 9 ways excluding 5
and hundred's digit in 8 ways excluding 0,5

8*9*5 = 360

nitish_negi · June 25, 2012, 2:43pm

see here two cases will be formed:
Case I: when 5 is at 100's digit so 5 7 x here x can take 0,2,4,6,8 so 5 values.

Case II: when three digit number does not contain 5 so so unit digit can be used in 5 ways,
ten's digit in 9 ways excluding 5
and hundred's digit in 8 ways excluding 0,5

8*9*5 = 360

why is hundred's digit used in 8 way? It could have been used in 8 ways as well?
The number is 3 digit. 8 combos will be used since 0,5 are omitted. How dumb i am!

hemant89 · June 25, 2012, 6:29pm

Q 1 . x's age is 1/10th of y's present age. y's age will be the thrice of z's age after 10 years. If z's eighth b'day was celebrated 2 years ago. Then the present age of x must be ?

5 years

10 years

15 years

20 years

Q . A year ago , Mohit was 4 times his son's age. In 6 years, his age will be 9 more than twice his son's age. What is the present age of the son?

10

9

20

None of these

hemant89 · June 25, 2012, 6:30pm

Q . The present age of 3 person are in the proportion of 5:8:7. eight years ago , the sum of their age was 76. find the present age of youngest person?

20

25
30
None of these

hemant89 · June 25, 2012, 6:30pm

Q . In an organizaation , the daily average wages of 20 illiterate employees is decreased from Rs. 25 to Rs. 10, thus the average salary of all the literate and illiterate employees is decreased by 10 per day. The no. of educated employees working in the organization are:

15
20
10

25

Q . Mr. Jagmohan calculated the average of 10 '3 digit no.' . But due to mistake he reversed the digits of a no and thus his average increased by 29.7 . The difference between the unit digit and hundred digit of that no. is

4
3
2

Can't be determined.