Question

The inner circumference of a circular race track is 264 m and the width of the track is 7m. Calculate
he cost of putting up a fence along the outer circle of the track at the rate of 15 pet metre​

Answer 1

Answer:

Step-by-step explanation:

inner curcumference= 264m

inner radius = 264x7/2x22

                    =42m

Radius of outer circle= 42+7m

                                     49m

Circumference of the outer track=  2 x 49 x 22/7

                                                        =308m

Rate for fencing per meter = Rs.15

Total distance to be fenced= 308m

Total cost required for fencing=Total distance to be fenced x Rate for fencing per meter

                                                   = Rs.4620.