Answer: What Comes Next? #247

The answer is A: 57.

The rule

Take away 9 each time.

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.

number = 111
for step in range(7):
    print(number)
    number = number - 9

When you run it, Python prints:

111
102
93
84
75
66
57