Question

The cost of leveling the ground of a circular region at a rate of Rs2 per sq metre is 4928.Find the radius of ground.

Answer 1

Step-by-step explanation:

leveling of ground RS 2m^2

leveling of ground RS 2m^2total cost =RS 4928

RS 2--------------- 1m^2

RS 4928 -------- 4928/2

=2464 m^2

pir^2=2464

22/7r^2=2464

r^2=(2464x7)/22

r^2=112x7

r^2=16x7x7

r=28m

Answer 2

Step-by-step explanation:

leveling of ground RS 2m^2

leveling of ground RS 2m^2total cost =RS 4928

RS 2--------------- 1m^2

RS 4928 -------- 4928/2

=2464 m^2

pir^2=2464

22/7r^2=2464

r^2=(2464x7)/22

r^2=112x7

r^2=16x7x7

r=28m