Question

Find all the natural numbers, which when divided by 7, leave the same number for the quotient and the remainder.

Answer 1

8, 16, 24, 32, 40, 48

Explanation:

Answer 2

8,16,24,32,48

Explanation:

When dividing a number by 7, only 7 different remainders are possible.

The remainders when dividing by 7 can not exceed 6, so the numbers in which we are interested can be represented as 7k+k or just 8k, where k=1, 2, ... , 6.