Find The Missing Letter 2, 5, 10, 17, ..........? - Testpoint

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Find the missing letter 2, 5, 10, 17, ..........?

22
24
26
28

Explanation

5 − 2 = 3

- 10 − 5 = 5

- 17 − 10 = 7

The pattern of differences is: +3, +5, +7

Next difference should be: +9

So,

17 + 9 = 26

Related MCQs

During a Hajj field-office aptitude and data-verification exercise, the sequence 4, 9, 19, 39, 79, ? is formed by doubling each term and adding one. Which number replaces the question mark?

158
159
160
None of these

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Look at this series: 12, 11, 13, 12, 14, 13, … What number should come next?

15
10
16
13

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Explanation

The series alternates between subtracting 1 and adding 2:
- 12 → 11 (subtract 1)
- 11 → 13 (add 2)
- 13 → 12 (subtract 1)
- 12 → 14 (add 2)
- 14 → 13 (subtract 1)

Following this alternating pattern, the next step should be adding 2 to 13:

$13 + 2 = 15$

$Last updated by NA on 06-11-2026$

Complete the series: 16, 24, _____, 40, 48.

28
30
32
36

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Series completion: 32, 40, 24, 16, 24, __

30
31
48
33

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Find the next number in the series: 3, 8, 15, 24, 35, _____?

46
48
44
None of these

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