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Aptitude · Q514

Number System

Competitive Exams · Aptitude · question 514

Q514

The product of any three consecutive natural numbers is always divisible by :

A.
3
B.
6
Answer
C.
9
D.
15

Answer: Option B

Solution

Answer: Option B
Solution:
Let the required product be n (n + 1) (n + 2)
Then,
n = 1 ⇒ n (n + 1) (n + 2) = (1 × 2 × 3) = 6
n = 2 ⇒ n (n + 1) (n + 2) = (2 × 3 × 4) = 24
n = 3 ⇒ n (n + 1) (n + 2) = (3 × 4 × 5) = 60
So, each such product is divisible by 6