Question

John ate 6/7 of his biscuits. He ate 24 biscuits How many biscuits did he have to start with?

Answer 1

28

Explanation:

Multiply by the reciprocal of
`(6)/(7)` , that is
`(7)/(6)` , then

`(7)/(6)` × 24 = 7 × 4 = 28 ← biscuits he had to start with

Answer 2

28

Explanation:

John ate 6/7 of total biscuits, let the total number of biscuits is 'x'

(6/7)(x) = 24

6x = 24*7

6x = 168

x = 28