The geometric mean of 16, 8, 4, 2 and 1 is

Arithmetic mean of numbers between 1 to 156 divisible by 2, 3, 4 and 6 is -

The number of integers n satisfying −n + 2 ≥ 0 and 2n ≥ 4 is:

If 10 → 4, 18 → 6 and 30 → 8, then 48 → ?

The number of whole numbers between 437 and 487 is:

The median of the first 10 prime numbers is