Thread: [SOLVED] Area of rectangles

2 rectangles with different areas. Each rectangle has a width of 7 tiles. Each rectangle is made with an even number of tiles that is greater than 40 but less than 60.
How many tiles are in each rectangle?

What I don't understand is how can they have different areas and still have the same number of tiles in each one.

All it's saying is that you have two rectangles, each with a width of 7, the lengths are different. The area of each one is an even number between 40 and 60. Since the width is 7, you know the area is gonna be a multiple of 7. The only even multiples of 7 in that range are 42 and 56.