Arithmetic Ability
Chain Rule

13 / 14

Q.

If 20 men can build a wall 56 meters long in 6 days , what length of  a similar wall can be  built by 35 men in 3 days?

View Answer

Correct choice: D

Explanation:

Let the required length be x meters More men, More length built (Direct proportion) Less days, Less length built (Direct Proportion) Men 20:35} Days 6 : 3}⋮⋮ 56 :x => (20 x 6 x X)=(35 x 3 x 56) => x = 49 Hence, the required length is 49 m.
13 / 14