TS ICET 23 May 2018 Shift 2 Paper

Question : 108 of 200

Marks: +1, -0

What is the cost of fencing around a circular field of diameter 28 meters at the rate of Rs. 10 per meter?

Solution:

Cost of fencing the circular field = (Circumference) × (Rate of fencing)

=(2r) ×(\text "Rate"\;)

=(2 ×{22}/{7} ×{28}/{2}) ×(10)

=₹ 880

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