A wall section 2 meters long and 80 cm high is required to be faced with square ceramic tiles

A wall section 2 meters long and 80 cm high is required to be faced with square ceramic tiles. How many tiles are needed if the side of the tile is 10 cm?

First you need to translate the length of the wall section from meters to centimeters.

Since 1 meter is 100 cm, the length will be:

2 * 100 = 200 cm.

Find the area of the wall section.

To do this, we multiply the length and width of the wall together.

We get:

200 * 80 = 16000 cm2

Find the area of one tile.

To do this, multiply its two sides with each other, we get:

10 * 10 = 100 cm2

To determine the number of tiles you need, divide the wall area by the area of one tile.

16000/100 = 160 pieces.

Answer: You need 160 tiles.