Question

if 20 men can build a 112 metre long wall in 6 day what will be length of a similar valve that can be built by 25 men in 3 days

Answer 1

Answer:

70m

explanation ->

20 men can build 112m wall in 6 days

applying simple ratio and proportion ->

=> in 3 days, 20 men can build a wall = 112*(3/6) = 56m

=> in 3 days, 1 man can build a wall which is = 56/20m

=> => in 3 days, 25 men can build a wall which is = (56/20)* 25m = 70m