If 20 men can build a wall 112 metres long in 6 days, what length of a similar wall can be built by 10 men in 3 days?
Pick:
A) 65mtr.
B) 28mtr
C) 70mtr.
D) 78mtr.
E) 17mtr.
20 men is 6 days can build 112 metres   10 men in 3 days can build = 112*(10/20)x(3/6)   = 28 meters   Answer: 28mtr.
<result>B</result>
If 20 men can build a wall 112 metres long in 6 days, what length of a similar wall can be built by 10 men in 3 days?