
Maya N. answered 08/07/18
Tutor
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Macroeconomics Tutor with 3 Years of Teaching Experience
You have three blocks, and therefore you have three spaces to put each one in. When placing the first block, you have three options. After that one is placed, you have two options for placing the second block, and then finally, you are left with just one option. Therefore, the multiplication to solve this problem is as follows: 3 x 2 x 1 = 6 total arrangements. If you'd like a more "visual example", please see below:
Let's say we have three blocks: red, yellow, and blue.
The following combinations that result from putting the red one first are:
Red, yellow, blue
Red, blue, yellow
The following combinations that result from putting the yellow one first are:
Yellow, red, blue
Yellow, blue, red
The following combinations that result from putting the blue one first are:
Blue, red, yellow
Blue, yellow, red
I hope this helps!