# A rectangular counter is covered with 600 square tiles. The counter could have been covered with 400 tiles 1 cm longer on a side. How do you find the length of a side of the smaller tile?

##### 1 Answer

Mar 30, 2016

The side length of the smaller tile is 2 cm

#### Explanation:

Let the length of 1 of the 600 tiles be

Then Length of counter be

S0

But we are told the length of 1 of the 400 tiles is

So we have: