Question

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

Answer 1

Answer: 49m

Step-by-step explanation:

Wall built by 20 men in 6 days =50

⇒ Wall built by 1 men in 1 day = $\frac{50}{20*6} =\frac{50}{120}$

⇒ Wall built by 35 men in 3 days =

$\frac{50*35*3}{120} \\\\\frac{50*35}{40} \\\\\frac{50*7}{8}$  

​= 49m

Hence the answer is 49m

Hope this helps