Question

If 30 labourers working 7 hours a day can finish a piece of work in 18 days, how many labourers working 6 hours a day can finish it in 30 days?

Answer 1

Answer:

44 labourers

Step-by-step explanation:

We will use Chain Rule to solve this question.

According to Chain Rule, the work efficiency remains constant.

WWF×T= Constant

Here W = Work Done, WF = Workforce, T = Time.

Let the number of workers needed be 'x'.

Applying Chain Rule,

W30×24×6=Wx×20×5

Or, x=43.2 Workers (Answer)

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