2014 · Q25
If n is a whole number greater than 1, then n^2(n^2 - 1) is always divisible by
Elementary MathematicsNumber System
- A12
- B24
- C48
- D60
Explanation
n^2(n-1)(n+1): among n-1, n, n+1 one is divisible by 3 and n(n-1) or n(n+1) contributes a factor 4, giving 12.