A metal box with a square base and vertical sides is to contain 1024 cm3 of water, the material for the top and bottom costs Rs 5 per cm2 and the material for the sides costs Rs 2.50 per cm2. Find the least cost of the box.

A metal box with a square base and vertical sides is to contain 1024 cm^(3) . The materical for the top and bottom costs Rs. 5//cm^(2) and the material for the sides costs Rs. 2.50//cm^(2) . Find the least cost of the box.

A metal box with a square box and vertical sides is to contain 512 c^3 of volume. The material for the top and bottom costs Rs. 5 cm^2 and that for the sides costs Rs. 2.50 cm^2 . Find the least cost of the box.

A box with square top and bottom is to be made to contain 250 cm^(3) Material for the top and bottom costs Rs. 2 per cm^(2) and the material for the vertical sides costs Rs. 1 per cm^(2) . What is the cost of the least expensive box that can be made?

A closed box (cuboid) with a square base is to have a volume 2000c.c, The material for the top and bottom of the box is to cost Rs 3 per square cm and the material for the sides is to cost Rs 1.50 per square cm. If the cost of the material is to be least find the dimension of the box.

A tank with rectangular base and rectangular sides open at the top is to be constructed so that its depth is 3 m and volume is 75 m3. If building of tank costs Rs. 100 per square metre for the base and Rs. 50 per square metres for the sides, find the cost of least expensive tank.

A tank with rectangular base and rectangular sides open at the top is to be constructed so that its depth is 3 m and volume is 75 m3. If building of tank costs Rs. 100 per square metre for the base and Rs. 50 per square metres for the sides, find the cost of least expensive tank.

The outer Surface of the cube of side 6 m is painted. If the cost of painting is Rs. 1 per 100 " cm"^2 . Find the total cost of painting the cube.

The dimensions of a rectangular box are inthe ratio of 2:3:4 and the differencebetween the cost of covering it with sheet of paper at the rates of Rs 8 and Rs 9.50 per m2is Rs 1248. Find the dimensions of the box.

The dimensions of a rectangular box are in the ratio 2:3:4 and the difference between the cost of covering it with sheet of paper at the rates of Rs. 8 and Rs. 9.50 per m^2 is Rs. 1248. Find the dimensions of the box.

The dimensions of a rectangular box are in the ratio 2:3:4 and the difference between the cost of covering it with sheet of paper at the rates of Rs. 8 and Rs. 9.50 per m^2 is Rs. 1248. Find the dimensions of the box.