The cost of flooring a rectangular hall at Rs 64 per square metre is Rs 2048. If the breadth of hall is 5m, find its length, its perimeter
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Answer:
Area of floor = Cost / rate
= 2048 / 64
= 32m²
b = 5m
Area of floor = l × b
= l × 5 = 32 m²
= l = 32/5 m
l = 6.4 m
it's perimeter = 2(l+b)
= 2(6.4+5)
= 2(11.4)
= 22.8 m
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