Answer: What Comes Next? #319

The answer is D: yellow circle.

The finished pattern: pink triangle, yellow circle, pink triangle, orange diamond, pink triangle, yellow circle, pink triangle, orange diamond, pink triangle, yellow circle.
The finished pattern.

The rule

The pattern repeats every 4 things: pink triangle, yellow circle, pink triangle, orange diamond. 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 = ["pink triangle", "yellow circle", "pink triangle", "orange diamond"]
for position in range(10):
    print(position + 1, pattern[position % len(pattern)])

When you run it, Python prints:

1 pink triangle
2 yellow circle
3 pink triangle
4 orange diamond
5 pink triangle
6 yellow circle
7 pink triangle
8 orange diamond
9 pink triangle
10 yellow circle

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