Let x rep. numbers of boys that can work at 54 the rate at
which the 10 girls work
For 1 hrs, x boys will work for 15×104
x = 54 x 10
= 8 boys
8 boys will do the work of ten girls at the same rate
4 + 8 = 12 bous cut the field in 5 hrs for 3 hrs,
12×53 boys will be needed = 20 boys.
