Question

it takes 4 men to build a house in 10 days. How many days will it take if there are 8 men?

Answer 1

Answer:

10 men take 8 days to build a wall How long will it take 4 men to do the same job

Answer 2

Answer:

let number of days be x

this is the case of inverse proportion as the number of men increase number of days decrease

4×10=8×x

x=5 days