Question

If 20 men can build a wall 66 metres long in 6 days, what length of a similar can be built by 86 men in 8 days?

Answer 1

In 1 day , 1 men can do work i metres = 66/(6*20)

so 8 day , 86 men can do work = (66*86*8)/(6*20) in meter

answer = 1932*100/5 (in cm)

= 38640 (in cm)

= 386.4 (in m)

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Answer 2

The 378.4 m length can be built by 86 men in 8 days

Step-by-step explanation:

Length of wall can be built by 20 men in 6 days = 66 m

Length of wall can be built by 20 men in 1 days =$\frac{66}{6}$

Length of wall can be built by 1 man in 1 days =$\frac{66}{6 \times 20}$

Length of wall can be built by 86 man in 1 days = $\frac{66}{6 \times 20} \times 86$

Length of wall can be built by 86 man in 8 days =$\frac{66}{6 \times 20} \times 86 \times 8=378.4 m$

Hence The 378.4 m length can be built by 86 men in 8 days

#Learn more;

If 20 men can build a 112m long wall in 6 days. what will be the length of a similar wall that can be built by 25 men in 3 days.

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