The monthly rent of a shop of dimension 18feet × 20feet is Rs.3600. What is the annual rent per square foot of the shop? Choose the correct choice from the following answers:
A) 120  B) 56  C) 68  D) 87  E) 92

Rationale: "sol . monthly rent per square feet = 3600 / ( 18 * 20 ) = 10 & annual rent per square feet = 12 * 10 = 120 answer : a"
Answer: A