The work done by a woman in 8 hours is equal to the work done by a man in 6 hours and by a boy in 12...........

Quantitative Aptitude ( CCS) Time and work

The work done by a woman in 8 hours is equal to the work done by a man in 6 hours and by a boy in 12 hours. If working 6 hours per day 9 men can complete a work in 6 days then in how many days can 12 men, 12 women and 12 boys together finish the same work working 8 hours per day?

3/2

5/3

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Explanation:

Solution:
8W=6M=12B
Then 1M=2B, 1W=3/2B, 1W=3/4M
Then 12 M+12W+12B=12M+9M+6M=27M
Given 9men work 6hrs /day and complete in 6days
9*6*6/1=27*8*x/1
==>x=3/2.