Question

the cost of the constructing a wall around a circular ground at the rate of rs 60m is rs 26400 find the cost of covering the ground by rrc at the rate of rs50m^2​

Answer 1

Answer:

Cost of covering the ground by rrc = Rs. 22000

Step-by-step explanation:

Circumference of the circular ground =

$2\pi \: r$

Given that total cost for constructing a wall

= Rs.26400

That is

$2\pi \: r \times 60 = 26400 \\ 2\pi \: r = \frac{26400}{60} \\ 2\pi \: r = 440$

Now

Covering the Circumference of the ground by rrc

at Rs. 50 per m sq

=

$2\pi \: r \times 50 \\ 440 \times 50 \\ rs. \: 22000$