Question

This year my age is a multiple of 4, Next year my age is a multiple of 5. I'm older than 18 and younger than 42. How old am I?​

Answer 1

24.

Explanation:

We need 2 numbers between 18 and 42 where y = x + 1 where x is a multiple of 4 and y is a multiple of 5.

x = 24 and y = 25 will fit the bill.

Answer 2

Answer: 24

Explanation:

Just cause