The cost of fencing a circular plot at the rate of Rs 15 per m is Rs 3300. What will be the cost of flooring the plot at the rate of Rs 100 per sq m?

Options

A. Rs 385000
B. Rs 220000
C. Rs 350000
D. Connot be determined

Answer

A

Explanation

Circumference of circular plot `=3300/15=220`
`rArr 2pir=220`
`:. R=220/(2xx22)xx7=(55xx7)/11=35 m`
Total cost of flooring the plot `=pir^2xx100`
`=22/7xx35xx35xx100= Rs 385000`