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. 400 per sq. metre.	Choose the correct option:
A) Rs. 15000 B) Rs. 8250 C) Rs. 15600 D) Rs. 16500 E) None of these
Solution   Area of the floor = (5.5 × 3.75) m2 = 20.625 m2   ∴ Cost of paving = Rs. (400 × 20.625) = 8250. Answer Rs. 8250
<result>B</result>
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. 400 per sq. metre.