Question

At a school, number of boys : number of girls = 9 : 7. There are 116 more boys than girls. Work out the total number of students at the school. *

Answer 1

Answer:

928

Step-by-step explanation:

let boys =9x

let girls=7x

atq.

9x-7x=116

2x=116

x=116/2

x=58.

therefore total boys=9×58=522

therefore total girls=7×58=406

total students=522+406=928

pls mark me as BRAINIEST

Answer 2

Answer:

Step-by-step explanation:

B:G --> 9:7

Expressed as fractions of the whole group, boys are 9/16 of the group and girls are 7/16 of the group.

We can use algebra to work out the total group number. For our working, I will use x to represent the total group number, and working will be to find x.

9/16x = 7/16x + 116

9/16x - 7/16x = 116

2/16x = 116

1/8x= 116

x= 116 x 8

x= 928