2010 · Q24
If k is any even positive integer, then (k2 +2k) is ,
Elementary MathematicsNumber System
- Adivisible by 24
- Bdivisible by 8 but may not be divisible by 24
- Cdivisible by 4 but may not be divisible by 8
- Ddivisible by 2 but may not be divisible by 4
Explanation
k(k+2) with k even is divisible by 8 (e.g. k=2 gives 8) but need not be by 24.