What Is A And B In The Given Sequence? A, 13, 9, 3, -5, -15, B - Testpoint

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What is a and b in the given sequence? a, 13, 9, 3, -5, -15, b

15,-25
15,-27
16,-28
None of these

Explanation

Related MCQs

Complete the series; 3, 4, 7, 8, 11, 12, ______?

15
10
18
16

اس سوال کو وضاحت کے ساتھ پڑھیں

Which number will come next? 3, 5, 7, 10, 12, 14, 24, 26, ____?

52
30
28
48

اس سوال کو وضاحت کے ساتھ پڑھیں

Find the missing number: 2, 6, 12, 20, 30, ?

42
43
44
None of these

اس سوال کو وضاحت کے ساتھ پڑھیں

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

اس سوال کو وضاحت کے ساتھ پڑھیں

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

15
10
16
13

اس سوال کو وضاحت کے ساتھ پڑھیں

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:

$13 + 2 = 15$

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

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