A rectangular park is 100m by 50m. It is surrounded by semi-circular flower bed sall round. Find the cost of leveling the semi-circular flower bed sall 60paise per square meter.
Length of rectangular park = 100m
Breadth of rectangular park = 50m
Radius of flower bed along length of park = 
Area of flower bed along length of park = 
Radius of flower bed along width = 
Area of flower bed along width =
Total area of flower beds = 7850+1962.50 = 4812.50m2
So,
Cost of leveling semicircular flower beds = 9812.50×.60 = Rs 5887.50
10