Quantitative Aptitude :: Area Problems And Answers

2. Find the cost of carpenting a room 13m long and 9m broad with a carpet 75cm broad at the rate of Rs.20 per metre
 

A. Rs.3100  B. Rs.3120
C. Rs.3080 D. Rs.3112
Answer & Explanation

Answer: Option B

Explanation:
Area of the carpet = area of the room
                           = 13×9=117sq.m
Breadth of the carpet = 75cm = 3/4m
Length of the carpet = area/breadth (A=L×B=>L=A/B)
                                =117×4/3=156m
Hence, cost of carpet = 156×20 =Rs.3120


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