The monthly rent of a shop of dimension 20feet × 15feet is Rs.3600. What is the annual rent per square foot of the shop?
Choices:
A) 43
B) 144
C) 68
D) 87
E) 92

Rationale: "sol . monthly rent per square feet = 3600 / ( 20 * 15 ) = 12 & annual rent per square feet = 12 * 12 = 144 answer : b"
Answer: B