Question

A marble the measure 12cm × 10cm. How many tiles will be requested to cover a wall of size 4 m by 3 m? Also. Find the cost of the tiles at Rs 22.50 per tiles.

Answer 1

one marble tile size:  12 cm  X  10 cm.
The size of the wall :  400 cm X 300 cm

we place 12cm side of the tiles along the 300 cm side of the wall.
So we need 25 tiles along the height of the wall.

We place 10 cm side along the length of the wall: 400 cm.
so we need 40 tiles.

Totally we need 40* 25 = 1000 tiles.

So the Cost:  Rs 22,500...