Question

Represent the following situation in the form of pair of equation in two variables.
7 men and 12 boys can finish a piece of work in 10 days while 5 men and 9 boys can
finish it in 14 days.

Answer 1

let

a = man

b boys (days are 10 & 14)

1) 7a+12b=10 equation 1

2)5a+9b=14 equation 2