A dome of a building is in the form of a hemisphere. From inside, it was white-washed at the cost of Rs. 498.96. If the cost of white-washing is Rs. 2.00 per square metre, find the inside surface area of the dome and volume of the air inside the dome.

A dome of a building is in the form of a hemisphere. From inside, it was white-washed at the cost of Rs 498.96 . If the cost of white-washing is Rs 2.00 per square metre, find the (i) inside surface area of the dome, (ii) volume of the air inside the dome.

The dome of a building is in the form of a hemisphere. Its radius is 63m. Find the cost of painting it at the rate of Rs. 2 per sq.m.

The dome of a building is in the form of a hemisphere. Its radius is 63dm. Find the cost of painting it at the rate of Rs. 2 per sq.m.

One side of a square plot is 300m. Find its area. Also, find the cost of levelling it, if the rate for levelling is Rs. 0.50 per square metre.

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

A garden is in the form of a rhombus whose side is 30 metres and the corresponding altitude is 16m. Find the cost of levelling the garden at the rate of Rs. 2 per m^2 .

Find the cost of painting at the rate of Rs. 5.60 per m^(2) on the hemispherical dome of diameter 10 m.

The internal measures of a cuboidal room are 12m xx 8m xx 4m . Find the total cost of whitewashing all four walls of a room, if the cost of white washing is Rs 5 per m^2 . What will be the cost of white washing if the ceiling of the room is also whitewashed.

A rectangular garden is 175 m long and 96 m broad . Find the cost of fencing it at Rs.17.50 per metre .Also ,find the cost of ploughing it at Rs. 4.50 paise per square metre.

It costs Rs. 5400 to fence a square field at Rs. 13.50 per metre . Find (i) the length of the side of the field (ii) the area of the field.