A cuboidal oil tin is `30 c m`*`40cm` * `50 c m` . Find the cost of the tin required for making `20` such tins if the cost of tin sheet is `R s .20` per square metre.

A cuboidal oil tin is 30\ c m by 40\ c m by 50\ c mdot Find the cost of the tin required for making 20\ such tines if the cost of tin sheet is R s .20 per square metre.

A cuboidal oil tin is 30\ c m by 40\ c m by 50\ c mdot Find the cost of the tin required for making 20\ such tines if the cost of tin sheet is R s .20 per square metre.

The dimensions of an oil tin are 26 c m\ x\ 26 c m\ x\ 45 c mdot Find the area of the tin sheet required for making 20 such tins. If 1 square metre of the tin sheet costs Rs. 10, find the cost of tin sheet used for these 20 tines.

One side of a square plot is 250m, find the cost of levelling it at the rate of Rs. 2 per square metre.

Find the cost of fencing a square park of side 300m at the rate of Rs. 20 per metre.

A milk container is made of metal sheet in the shape of frustum of a cone whose volume is 10459 3/7 cm^2 . The radii of its lower and upper circular ends are 8 cm and 20 cm respectively. Find the cost of metal sheet used in making the container at the rate of Rs. 1.40 per square centimeter.

A closed box is a cuboid in shape with length = 40 cm , breadth = 30 cm and height = 50 cm , It is made of thin metal sheet. Find the cost of metal sheets required to make 20 such boxes. If 1m ^(2) of metal sheet costs rupes 45.

A closed rectangular box has length = 40 cm, breadth = 30 cm and height = 50 cm. It is made of thin metal sheet. Find the cost of metal sheet required to make 20 such boxes, if 1 m^(2) of metal sheet costs Rs.45.

One side of a square field is 179 m. Find the cost of raising a lawn on the field at the rate of Rs 1.50 per square metre.

A swimming pool is 20m long 15m wide and 3m deep. Find the cost of repairing the floor and wall at the rate of Rs. 25per square metre.