Step-by-step explanation:
A square number is any number multiplied by itself.
EG
1*1 is 1
2*2 is 4
3*3 is 9
4*4 is 16
and so on.
From this, we can see that 3 of the numbers which are available are square numbers (1, 4, 9) and of those, 1 of them is even (4). So, we can put 4 where the circles cross over as it fits in both categories and since 9 and 1 only fits in the square number category, we can put them there.
Since you are meant to put even numbers in the right circle, we can go ahead and put the remaining even numbers (2, 6, 8, 10, 12) in there.
Since the remaining odd circles do not fit in either category, we put all the odd numbers outside the circles in the rectangle (3, 5, 7, 11).
So:
SQUARE- 9, 1
EVEN- 2, 6, 8, 10, 12
BOTH- 4
NEITHER- 3, 5, 7, 11,
