Question
Find the missing number in the given number series. 999, 1002, 995, 1010, ?, 1042
Solution
ATQ, Check differences: +3, −7, +15, ?, +32 (if from 1010) doesn’t fit; instead use full pattern: +3, −7, +15, −31, +63 These are: +3 = + (2²−1) −7 = −(2³−1) +15 = + (2⁴−1) −31 = −(2⁵−1) +63 = + (2⁶−1) So missing step: 1010 − 31 = 979
More Missing Series Questions
- What value should come in place of (?) question mark in the following number series. 96, 48, 24, 12, 6, ?
- Find the missing number in the given number series. 6, 15, 35, 66, 108, ?
- 18, 54, 162, ?, 1458, 4374
- In each of the following number series, one term is missing. Find the missing term. 10, 15, 13, 26, ?, 66, 60
- 96, 144, ?, 324, 486, 729, 1093.5
- What value should come in the place of (?) in the following number series? 15, 16, 24, 51, 115, ?
- What will come in place of the question mark (?) in the following series? 82, 97, 72, 107, ?, 117
- 32 33 29 38 ? 47 11
- What value should come in the place of (?) in the following number series? 100, 149, 68, 189, ?, 245
- 4, 7, 12, 21, 36, ?
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