Cost related problems in which cost is given in Rs per square metre

cost related problems in which cost is given in Rs per metre

cost related problems for circular region

A cuboidal oil tin is 30cm by 40cm by 50cm . Find the cost of the tin required for making 20 such tines if the cost of tin sheet is Rs.20 per square metre.

A cuboidal oil tin is 30cmby40cm by 50cm . Find the cost of the tin required for making 20 such tins if the cost of tin sheet is Rs.20 per square metre.

Priya used four similar rectangular carpets and a square carpet for the flooring in her study room as shown below. If it cost her Rs. 6 per square metre for the rectangular carpets and Rs. 8 per square metre for the square carpet, how much did she pay in all ?

The volume of a closed square based rectangular box is 1000 cubic metre. The cost of constructing the base is 15 paise per square metre and the cost of constructing the top is 25 paise per square metre. The cost of constructing its sides is 20 paise per square metre and the cost of constructing the box is Rs. 3.Find the dimensions of box for minimum cost of construction.

Find the cost of sinking a tube-well 280 m deep, having a diameter 3m at the rate of Rs 15 per cubic metre. Find also the cost of cementing its inner curved surface at Rs 10 per square metre.