The total cost of flooring a room at Rs 8 50 per square metre is Rs 510 If the length of the room is...........

Quantitative Aptitude ( CCS) Mensuration 3D

The total cost of flooring a room at Rs 8.50 per square metre is Rs 510. If the length of the room is 8 m, its breadth is:

5.5 m

7.5 m

4.5 m

3.6 m

Area = (Total cost/Rate) = 510/8.50) m²
= (510 ×(2/17)) m² = 60 m²
Area = 60 m²
length = 8 m
Breadth = Area/Length = 60/8 = 7.5 m

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