Question

Divide 96 books for two people by 5: 7 ratio

Answer 1

Let ratio constant be x.
So, 5x and 7x.

Now,

5x + 7x = 96
=> 12x = 96
=> x = 8

So,

Division of books = 40 and 56

Answer 2

let 5:7 be 5x and 7x
5x+7x=96
12x=96
x=96/12
x=9

I hope it helped you