Daniel is painting the walls and ceiling of a cuboidal hall with length,breadth and height of 15m,10m and 7m respectively.From each can of paint `100 m^2` of area is painted.How many cans of paint will she need to paint the room?

The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceilling at the rate of Rs 7.50 per m^(2).

The capacity of a cuboidal tank is 50000 litres of water. Find the breadth of the tank if its length and depth are respectively 2.5 m and 10 m.

The length and breadth of a rectangular piece of land are 500m and 300m respectively. Find: (i) its area (ii) the cost of the land, if 1m^2 of the land costs rs10,000.

How many electrons in an atom can have n=3,l=2,m=-1?

The length and breath of a rectangular field is 110 m and 30 m respectively. Calculate the length of the longest rod which can measure the length and breadth of the field exactly.

The capacity of a closed cylindrical vessel of height 1m is 15.4 litres. How many square meters of metal sheet would be needed to make it.

A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recyled cardboard. Each cone has a base diameter of 40 cm and height 1 m. If the outer side of each of the cones is to be painted and the cost of painting is Rs 12 per m^(2) , what will be the cost of painting all these cones ? ("Use"pi=3.14)" and take "sqrt(1.04)=1.02)

The length , breadth and thickness of a rectangular sheet of metal are 4.234 m, 1.005 m, and 2.01 cm respectively. Give the area and volume of the sheet to correct significant figures.

A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm.How many such tiles are required to cover a floor of area 1080 m^2 ?[If required you can split the tiles in whatever way you want to fill up the corners]