Question

The sum of two perfect squares is 25. What are the square roots of these squares?

5 and 20
9 and 16
3 and 4
1 and 24

Answer 1

a^2+b^2=25
we test them

5^2+20^2=25+400 which is too much
9^2+16^2=too much
3^2+4^2=9+16=25, yep

3 and 4

Answer 2

3 and 4 is the answer because 3 squared is 9 4 squared is 16 and 9 add 16 is 25