Answer: What Comes Next? #52

The answer is D: green square.

The finished pattern: yellow square, green square, green square, yellow square, green square, green square, yellow square, green square.
The finished pattern.

The rule

The pattern repeats every 3 things: yellow square, green square, green square. Then it starts again from the beginning.

The pattern as Python code

Here is a tiny Python program that follows the same rule. Type it into IDLE and run it to print the whole pattern, including the answer.

pattern = ["yellow square", "green square", "green square"]
for position in range(8):
    print(position + 1, pattern[position % len(pattern)])

When you run it, Python prints:

1 yellow square
2 green square
3 green square
4 yellow square
5 green square
6 green square
7 yellow square
8 green square

Pixel says: Try changing a number in the code and run it again. Can you make the pattern go on for 20 steps? Meow!