MCQ
Which number replaces the question mark: 4, 9, 16, 25, ?
Explanation
These are perfect squares: 2²=4, 3²=9, 4²=16, 5²=25, 6²=36.
These are perfect squares: 2²=4, 3²=9, 4²=16, 5²=25, 6²=36.