If the product of three consecutive integers is 120, then the sum of the integers is :

A. 9

B. 12

C. 14

D. 15

E. 18

Answer: Option D

Solution(By Examveda Team)

$$\eqalign{ & 120: \cr & = 2 \times 2 \times 2 \times 3 \times 5 \cr & = \left( {2 \times 2} \right) \times 5 \times \left( {2 \times 3} \right) \cr & = 4 \times 5 \times 6 \cr} $$
Clearly, the three consecutive integers whose product is 120 are 4, 5 and 6
Required sum :
= 4 + 5 + 6
= 15