The missing number in the series 15, 31, 63, based on the provided reference, is 127, as it is part of the completed series.
Understanding the Series
The full series from the reference is: 7, 15, 31, 63, 127, 255.
Here's a breakdown of how the series is generated:
- Each number is generated by multiplying the previous number by 2 and then adding 1.
- 7 * 2 + 1 = 15
- 15 * 2 + 1 = 31
- 31 * 2 + 1 = 63
- 63 * 2 + 1 = 127
- 127 * 2 + 1 = 255
Complete Series Displayed in a Table
| Position | Value |
|---|---|
| 1 | 7 |
| 2 | 15 |
| 3 | 31 |
| 4 | 63 |
| 5 | 127 |
| 6 | 255 |
How to Find the Next Number
To find the next number in a similar series, you apply the same rule: Multiply by 2 and add 1. For example, to continue the series after 255:
- 255 * 2 + 1 = 511
Summary
The missing number in the sequence is 127. This series follows a simple pattern of doubling the previous number and adding one, making it a straightforward mathematical progression.
