What numbers should replace the question marks in the sequence?
Correct answer: 12.5, 25
Explanation:
The sequence is 4, 3.5, 7, 6.5, 13, ?, ?.
The pattern uses two alternating steps: subtract 0.5, then multiply by 2.
Follow the pattern:
4 - 0.5 = 3.5
3.5 × 2 = 7
7 - 0.5 = 6.5
6.5 × 2 = 13
So the next steps are:
13 - 0.5 = 12.5
12.5 × 2 = 25
Therefore, the missing numbers are 12.5 and 25.
Finall answer to this puzzle: 12.5, 25
