Question

A race track in the form of a ring whose outer circumference is 308 m and inner cicumference is 264 m.Find the cost of gravelling on race track at rupees 2.80 per m sq​

Answer 1

Step-by-step explanation:

Outer radius will be 49m

Inner radius will be 42m

Radius of track will be 3.5m

Area of path =pie r^2

=22/7*3.5*3.5

=38.5m^2

Cost of gravelling the path=

Rupees 107.20