Question

15 men can do a piece of work in 36 hours. How many men will be required to finish the work in 20 hours.​

Answer 1

27 men

Given that 15 men can do a piece of work in 36 hours. Thus 27 men will be required to finish the piece of work in 20 days.

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Answer 2

Answer:

Using direct proportion method

15 men do work in 36 hours

Therefore 25 men do work in

$15× \frac{36}{20} \\ 3 \times 9 = 27 \: men$