2. A road 3.5 m wide surrounds a circular plot whosecircumference is 4 – InterviewSolution

InterviewSolution

1.	2. A road 3.5 m wide surrounds a circular plot whosecircumference is 44 m. Find the cost of paving the(ICSE)road at10 per m2
Answer» we find area to calculate paving costcircumference =2pi rr= 22/piarea of circular plot= pi r^2pi× (22/pi)×(22/pi)= 484/pi= 154total cost = 154× 10 = 1540

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