Question

The sum of any three consecutive number is multiple of ___

• A. 3
• B. Three

Answer 1

Answer: (A), (B)

The correct options are
A

3

B

Three

(1, 2, 3 sum = 6), (2, 4, 6 sum = 12), (1, 3, 5 sum = 9)

Let three consecutive numbers be n, n+1, n+2

Sum = n+ n+1+n+2

= 3n + 3

= 3(n+1)

$\therefore$ Sum of any three consecutive numbers is a multiple of 3.