Question

Twenty men can lay a road of 50km long in 10days . In how many days can 15 men lay a road of 75 km long... please answer to the question
1...10days
2...20days
3...30days
4....40days

Answer 1

15 men lay a road of 75 km long in 20 days

Answer 2

2o men taking 10 days for 50 km


So 1 men work 2.5 in ten days


So
15 men multiply 2.5 in 10 days = 37.5

Then

37.5 km in 10 days


20 days take for 75 km


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