If 36 men can do a piece of work in 25 hours, in how many hours will 12 men
do it ?
Choose the most appropriate option:
A) 65 hours	B) 75 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)   12 : 36 : : 25 : x	(12 x x) = (36 x 25)	(36 x 25)/12 = 75   Hence, 15 men can do it in 60 hours.   Answer is 75 hours.
<result>B</result>
If 36 men can do a piece of work in 25 hours, in how many hours will 12 men
do it ?