Latest MBT Aptitude Question SOLUTION: Q. 15 Men take 21 days of 8 hrs. each to do a piece of work. How many days of 6 hrs. each would do if 21 women take. If 3 women do as much work of 2 men.

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Q. 15 Men take 21 days of 8 hrs. each to do a piece of work. How many days of 6 hrs. each would do if 21 women take. If 3 women do as much work of 2 men.

Asked In MBT neeraj (14 years ago)

Solved leejia james Read Solution (7)

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Read Solution (7) :

Adalkar Arjun Ramprasad  (13 years ago)

30.
15m 168h ->1w
14m 6x->1w
solve this equn. u wil get the answer 30

Is this solution Helpfull? Yes (5) | No (2)  

RAJASEKHAR  (8 years ago)

Find the no. of man-hrs to complete the job
15 * 21 * 8 = 2520 man hrs:
2 man-hrs = 3 women-hrs

therefore
1 women-hr = 2/3 man-hr:

let d = no. days for these women to do the job
21 * 2/3 * 6d = 2520
84d = 2520
d = 30 days

Is this solution Helpfull? Yes (4) | No   

vivek  (9 years ago)

15M ->21days->8Hrs
i.e 15M->21*8=168hrs
now,
3WOMEN=2MEN
take a pair of 3 women in total no. of women i.e 21/3=7
each 3 women=2 men
7*2=14 men
now
1514=x/168
i.e no. of hrs is inversely propositional to no. of workers
therefore x=(168*15)/14=180
180 hrs is total no. of hrs that women work
now they work only 6hrs per day
therefore 180/6=30
ans:30days

Is this solution Helpfull? Yes (3) | No   

leejia james  (14 years ago)

30 days

Is this solution Helpfull? Yes | No (1)  

Vadivelan M  (14 years ago)

30 days

Is this solution Helpfull? Yes | No (1)  

Sunil Tanwar  (14 years ago)

in 28 days

Is this solution Helpfull? Yes | No (6)  

sanjay pandey  (14 years ago)

30days

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