25, 400 and 144 are all square numbers and 24, 300 and 145 are not.
Therefore, he must like 1600
3rd one I think tho it may not be accurate
5,000 tens = (5,000 x 10)
To find out how many thousands are in it,
just divide:
(5,000 x 10) / (1,000) = (5 x 10) = 50 of them .
It should have 2 solutions
