The dimensions of a cinema hall are 100m, 50m and 18m. How many persons can sit in the hall, if each person requires `150 m^3` of air?

The dimensions of a Cinema Hall are 100m, 60m and 15m. How many persons can sit in the hall, if each requires 150m^(3) of air?

How many persons can be accommodated in a big - hall of dimensions 40 m . 25m and 15 m. Assuming that each person requires 5 m ^(3) of air?

A conical tent is 9m high and the radius of its base is 12m. (i) What is the cost of the canvas required to make it, if a square metre canvas costs Rs. 10? (ii) How many persons can be accommodated in the tent, if each person requires 2 square metre on the ground and 15 m^3 of space to breath in?

The internal dimensions of a box are 1.2 m 80 cm and 50 cm. How many cubes each of edge 7 cm can be packed in the box with faces parallel to the sides of the box.

In how many ways can 8 persons sit in a round table.

In how many ways 6 persons can sit at a round table, if two of them prefer to sit together?

The dimensions of a room are 12.5 m by 9m by 7m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1.2 m and each window 1.5m by 1 m. Find the cost of painting the walls at Rs. 3.50 per square metre.

The dimensions of a room are 12.5 m by 9m by 7m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1.2 m and each window 1.5m by 1 m. Find the cost of painting the walls at Rs. 3.50 per square metre.

5 men can paint a hall in 18 hours. How many men will be able to paint it in 10 hours?

The atomic number of an element M is 26. How many electrons are present in the M-shell of the element in its M^(3+) state