The least number by which 72 must be multiplied in order to produce a multiple of 112, is Choices:
A) 6
B) 12
C) 14
D) 18
E) 20

Rationale: "solution required numbers is divisible by 72 as well as by 112 , if it is divisible by their lcm , which is 1008 . now , 1008 when divided by 72 , gives quotient = 14 . required number = 14 . answer c"
Answer: C