"5 men and 2 boys working together can do four times as much work as a
Channel: Doubtnut
Date: 2020-04-05

"5 men and 2 boys working together can do four
 times as much work as a man and a boy. Working capacities of a man and a boy
 are in the ratio : 
`1:2`
b. `2:1`
c. `3:1`
d. `1:3`"