The cost of painting a solid sphere at the rate of 50 paise per square metre is Rs. 1232. Find the volume of steel required to make the sphere.

The cost of painting the whole surface area of cube at the rate of 10 paise per cm^(2) is Rs. 264.60. Then, the volume of the cube is

The cost of turfing a rectangular field at 85 paise per square metre is Rs 624.75. Find the perimeter of the field if its sides are in the ratio 5 : 3.

The cost of turfing a rectangular field at 85 paise per square metre is Rs 624.75. Find the paimeter of the field if its sides are in the ratio 5:3.

The cost of papering the walls of a room 12 m long at the rate of Rs. 13.50 per square metre is Rs. 3402 and the cost of matting the floor at Rs. 9.50 per square metre is Rs. 1026. Find the height of the room.

The cost of papering the walls of a room 12 m long at the rate of Rs. 13.50 per square metre is Rs. 3402 and the cost of matting the floor at Rs. 9.50 per square metre is Rs. 1026. Find the height of the room.

The cost of painting the top surface of a triangular board at 80 paise per square metre is Rs. 176 . 40 .If the height of the board meansures 24.5m , find its base .

The length, breadth and height of a rectangular box are in the ratio of 3: 2:4 respectively and the cost of covering it with a sheet of paper at the rate of 1.50 per square metre is Rs.1,950. Find the volume of the box.

The dimension 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 rate of Rs.4 and Rs.4.50 per square metre is Rs.416. Find the dimensions of the box.