The length of a room is 5.5 m and width is 3.75 m. What is the cost of paying the floor by slabs at the rate of Rs. 800 per sq. meter. Pick:
A) rs . 12000
B) rs . 19500
C) rs . 18000
D) rs . 16500
E) rs . 17500

Rationale: "explanation : area = 5.5 × 3.75 sq . metre . cost for 11 sq . metre . = rs . 800 hence , total cost = 5.5 × 3.75 × 800 = 5.5 × 3000 = rs . 16500 answer : option d"
Answer: D