Question

20 men working 8 hours per day can complete a piece of work in 21 days how many hours per day must for treatment work to complete the same job in 7 days​

Answer 1

Answer:

So 21 days should be divided with x to get 7

x multiplied by 8

21/7=3

3=x

3 multiplied by 8= 24

so the workers have to work for 24 hours

Answer 2

20 men working 8 hours per day can complete a piece of work in 21 days how many hours per day must for treatment work to complete the same job in 7 days