Ratio And Proportion Q16

16.If 24 men working for 12 hrs a day can do a work in 16 days, in how many days can 8 men working 6 hrs a day do it?

A. 12 days                             B. 90days

C.96 days                              D.8 days

Soln:

24 men – 12 hrs – 16 days

8 men – 6 hrs – ? days (n)

n =16 X (12 / 6) X (24 / 8)    ( since no of hrs reduced no of days has to increase and no of men reduced also increases no of days i.e., inverse proportional)

=> n = 96 days.