129+ Number Series Questions and Answers

Q:

In the following question, select the missing number from the given series.

19, 26, 40, 61, ?, 124

A) 89	B) 82
C) 65	D) 98

Answer & Explanation Answer: A) 89

Explanation:

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5 10960

Q:

In the following question, select the missing number from the given series.

2, 4, 13, 41, 106, ?

A) 172	B) 191
C) 219	D) 232

Answer & Explanation Answer: D) 232

Explanation:

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17 10908

Q:

Find the odd man out of the series 888, 440, 216, 104, 48, 22, 6 ?

A) 104	B) 48
C) 22	D) 216

Answer & Explanation Answer: C) 22

Explanation:

In the given series,

2nd term = $\frac{1 s t t e r m - 8}{2} = \frac{888 - 8}{2} = 440$

3rd term = $\frac{2 n d t e r m - 8}{2} = \frac{440 - 8}{2} = 216$

and so on...

Here 6th term = $\frac{5 t h t e r m - 8}{2} = \frac{48 - 8}{2} = 20$

Therefore, 22 is wrong.

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Job Role: Bank Clerk

26 10839

Q:

Choose the missing terms out of the given alternatives Y, B, T, G, O, ?

A) M	B) N
C) K	D) L

Answer & Explanation Answer: D) L

Explanation:

The given sequence is a combination of two series:
i.)Y,T, O and ii.)B, G, ?
i. consists of 2nd, 7th, 12th letters from end of English alphabet,while
ii. consists of 2nd, 7th, 12th letters from beginning of English alphabet
So, the missing letter in ii.) is the 12th letter from the beginning of English alphabet,which is L.

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25 10787

Q:

What will come in place of the question mark (?) in the given question?

452 + 312 ÷ 13 = 34 * ?

A) 18	B) 32
C) 26	D) 28

Answer & Explanation Answer:

Explanation:

452 + 312 ÷ 13 = 34 * ?

=> 452 + 312/13 = 34 * x

=> 452 + 24 = 34 * x

=> x = 476/34 = 14

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0 10749

Q:

In the following question, select the missing number from the given series.

13, 17, 26, 42, 67, ?

A) 103	B) 91
C) 109	D) 111

Answer & Explanation Answer: A) 103

Explanation:

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25 10661

Q:

In the following question, select the missing number from the given series.

13, 17, 26, 42, 67, ?

A) 99	B) 90
C) 103	D) 94

Answer & Explanation Answer: C) 103

Explanation:

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5 10654

Q:

Find out the wrong term in the series 3, 7, 15, 39, 63, 127, 255, 511

A) 39	B) 255
C) 127	D) 63

Answer & Explanation Answer: A) 39

Explanation:

The correct pattern is *2+1
So, 39 is wrong and must be replaced by (15 * 2 + 1) = 31

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21 10526

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