Question

Two sisters bought together 15 books. the elder one bought 7 books less than the younger one.how many books did the elder sister. maths solution

Answer 1

Okay here is your answer

Let's take the books taken by elder sister as x

So the books taken by the younger sister will be x + 7

According to the given conditions

x + ( x + 7 ) = 15
2x = 15 - 7
2x = 8
x = 8/2
x = 4

Hence the books taken by the elder sister is 4 books and that of the younger sister

x + 7 = 4 + 7 = 11 books

Hope it helps