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A rectangular lawn 80 metres by 60 metres has two roads each 10 m wide running in the middle of it, one parallel to the length and the other parallel to the breadth. Find the cost of gravelling them at Rs. 30 per square metre.
Answer & Solution
Correct Answer:
Option
D
Area of the roads :
= (80 × 10 + 60 × 10 - 10 × 10) m2
= 1300 m2
∴ Cost of gravelling :
= Rs. (1300 × 30)
= Rs. 39000
= (80 × 10 + 60 × 10 - 10 × 10) m2
= 1300 m2
∴ Cost of gravelling :
= Rs. (1300 × 30)
= Rs. 39000
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LoginSo answer should be Rs 36000.