A room 5m × 8 m is to be carpeted leaving a margin of 10 cm from each wall. If the cost of the carpet is Rs. 18 per sq. meter, the cost of carpeting the room will be :

A. Rs. 673.92

B. Rs. 682.46

C. Rs. 691.80

D. Rs. 702.60

Answer: Option A

Solution(By Examveda Team)

Area of the carpet :
= [(5 - 0.20) × (8 - 0.20)] m²
= (4.8 × 7.8) m²
= 37.44 m²
∴ Cost of carpeting :
= Rs. (37.44 × 18)
= Rs. 673.92