A man and a boy can do in 15 days a piece of work which could be done by 7 men and 9 boys in 2 days.

A man and a boy can do in 15 days a piece of work which could be done by 7 men and 9 boys in 2 days. In how many days could one man finish the work alone?

A. 20 days C. 60 days
B. 30 days D. 50 days

Jhun Vert Fri, 07/05/2024 - 06:15

Solution