Question

A tile layer is laying tiles on a square wall of sides 2metres. If each tile measures 20cm by 20cm,calculate:

1. The number of tile required to tile the entire wall.

2. The cost of the tiles if they are sold at $2.00 each.

Answer 1

Is it

A=SxS
2mx2m=4m
1m=100cm

=400/20=20tiles

Answer 2

total area = 4 m^2
one tile is 0.2*0.2 = 0.04 m^2 per tile
so
4/.04 = 100 tiles

100 tiles * 2 dollars/tile = 200 dollars