Problem
First name
Isabella Cuni
School
Wentworth primary
Country
Age
10
The number is 80. It is 80 as the tens and ones are both even and it is a multiple of five. Also, all the other numbers are not in the five time tables apart from 120. However, 120 goes into the three times tables, 40*3 is 120. Therefore, the only answer is 80.