Question

The cost of fencing a circular park at the rate of Rs.5 per m is Rs.1100. What is the radius of the park?

Answer 1

circumference of park = 1100/5
= 220m
c = 2pi r
220 = 2 * 22/7 * r
r = 35

Answer 2

Rs.1100 / Rs.5
= 220m
CIrcumference: 220m
circumference = 2$\pi$ r
 2 X 3.142 X r = 220
r = 35