Question

the total number of student is 1790 if the number of boys is 64 more than that of the girls find the number of girl in the school

Answer 1

total students = 1790
let total girls = x
total boys = x + 64

x + 64 + x = 1790
2x = 1790 - 64
x = 1726/2
x = 863

Answer 2

Let number of girls be x

Thus number of boys=64+x

The total number of students =1790

Thus 1790=x+(64+x)

2x+64=1790

2x=1790-64

x=1726/2

Thus x=863

Thanks

Sam.