On dividing 109 by a number, the quotient is 9 and the remainder is 1. Find the divisor Options
A) 12 B) 14 C) 18 D) 22 E) 24

Rationale: "d = ( d - r ) / q = ( 109 - 1 ) / 9 = 108 / 9 = 12 a )"
Answer: A