The length of a room is 5.5 m and width is 3.75 m. Find the cost of paving the floor by slabs at the rate of Rs. 800 per sq. metre.  Select the correct option:
A) rs . 15000
B) rs . 15550
C) rs . 15600
D) rs . 16500
E) none of these

Rationale: "solution area of the floor = ( 5.5 × 3.75 ) m 2 = 20.625 m 2 ∴ cost of paving = rs . ( 800 × 20.625 ) = 16500 . answer d"
Answer: D