An overloaded truck met with an accident on the national highway. The police has barricated an area of 81m along the truck and the spreadover goods. Hollow cones madeof recycled card-board are used for the purpose. Each cone has a base diameter of 50cm and height 1m. There is a distance of 1m between each of the cones(diameter of diameter).
a. find the number of cones that have been put in place.
b. if cost of painting a cone is Rs.15 per sq.m, what is the cost of painting all the cones?
c. why do overloaded trucks pose a danger to people or vehicle or properties on road?
d. specify some other uses of recycled material with the help of examples. list some benifits of recycling.