Question

# The cost of fencing a circular plot at the rate of Rs. 15 per metre is Rs. 3, 300.  What will be the cost of flooring the plot at the rate of Rs. 100 per square metre?

Correct Answer
A
Rs. 3,85,000
Your Answer
B
Rs. 3,50,000
Your Answer
C
Rs. 4,85,000
Your Answer
D
None of these

Solution

## The correct option is A Rs. 3,85,000Total cost of fencing = Rs. 3300 Rate = Rs. 15/metre Circumference of circular plot,=330015=220  metre ∴2πr=220⇒2×227×r=220⇒r=220×72×22=35 metre  Area of the circular plot =πr2 Cost of flooring =3850×100 =Rs.385000

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