Q66
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
AnswerB.
Rs. 682.46
C.
Rs. 691.80
D.
Rs. 702.60
Answer: Option A
Solution
Answer: Option A
Solution:
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