The pattern in the puzzle alternates between subtracting 2 and adding 4.

Starting with 3:
3 + 18 = 21
21 - 16 = 5
5 + 14 = 19
19 - 11 = 8
8 + 8 = 16
16 - 4 = 12
12 + 0 = 12
12 + 5 = 17

Following this pattern, the next step would be to subtract 9 (as it decreases by 2 each time in the subtraction steps):

17 - 9 = 8

So, the missing number in the sequence should be 8.

Question

The pattern in the puzzle alternates between subtracting 2 and adding 4.

Starting with 3:
3 + 18 = 21
21 - 16 = 5
5 + 14 = 19
19 - 11 = 8
8 + 8 = 16
16 - 4 = 12
12 + 0 = 12
12 + 5 = 17

Following this pattern, the next step would be to subtract 9 (as it decreases by 2 each time in the subtraction steps):

17 - 9 = 8

So, the missing number in the sequence should be 8.

Knowee AI · Accepted Answer

The pattern in the puzzle alternates between subtracting 2 and adding 4.

Starting with 3:
3 + 18 = 21
21 - 16 = 5
5 + 14 = 19
19 - 11 = 8
8 + 8 = 16
16 - 4 = 12
12 + 0 = 12
12 + 5 = 17

Following this pattern, the next step would be to subtract 9 (as it decreases by 2 each time in the subtraction steps):

17 - 9 = 8

So, the missing number in the sequence should be 8.

Solve the following puzzle. 3, 21, 5, 19, 8, 16, 12, 12, 17, ?