Question

150 men can dig a trench in 240 days , how many men should be employed to dig this trench in 180 days


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maths
lesson is unitary method

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Answer 1

Answer 200

Step-by-step explanation:

150/x=240/180

by inverse variation

x/150=240/180

150×240/180=x

x=200

Answer 2

Number of men in 180 days is 112 mens.

150 men can do work in 240 days

So for 240 days number of men employed=150 men.

For 1 day number of men employed=150/240 men.

So for 180 days number of men employed =150×180/240 men

So for 180 days number of men employed =112 men.