Question

If a stack of 6 bricks is 2 feet how high is a stack of 20 bricks?

Answer 1

There are 60 bricks in a stack 20 feet high.

2x10=20

If you multiply the 2 by 10, you have to multiply 6 by 10.

6x10=60

So if there are 6 bricks in a 2 feet high stack, there are 60 bricks in a 20 feet high stack.