If 36 men can do a piece of work in 25 hours, in how many hours will 10 men
do it ?
Pick:
A) 65 hours B) 90 hours C) 30 hours D) 62 hours E) 66 hours
Let the required number of hours be x. Then,   Less men, More hours	(Indirect Proportion)   10 : 36 : : 25 : x	(10 x x) = (36 x 25)	(36 x 25)/10 = 90   Hence, 15 men can do it in 60 hours.   Answer is 90 hours.
<result>B</result>
If 36 men can do a piece of work in 25 hours, in how many hours will 10 men
do it ?