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 Number Series Questions

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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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26 11780
Q:

Find out the wrong term in the series 125, 126, 124, 127, 123, 129

A) 129 B) 125
C) 127 D) 123
 
Answer & Explanation Answer: A) 129

Explanation:

The correct pattern is +1, -2, +3, -4, +5, . . . .
So,129 wrong and must be replaced by 123 + 5 = 128

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Filed Under: Number Series

17 11551
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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Filed Under: Number Series

21 11464
Q:

Find the wrong number in the given series :

26, 20, 16, 11, 8, 6, 5

A) 5 B) 26
C) 11 D) 16
 
Answer & Explanation Answer: D) 16

Explanation:

26 - 6 = 20

20 - 5 = 15

15 - 4 = 11

11 - 3 = 8

8 - 2 = 6

6 - 1 = 5

Therefore, 16 is wrong number.

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Filed Under: Number Series
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Job Role: Bank PO , Bank Clerk

23 10971
Q:

In the following question a letter-series is given, in which some letters are missing. The missing letters are given in the proper sequence as one of the alternatives. Choose the correct alternatives. ba_ba_bac_acb_cbac

A) bbca B) ccba
C) cbac D) aacb
 
Answer & Explanation Answer: B) ccba

Explanation:

The series is bac/bac/bac/bac/bac/bac.
The pattern bac is repeated.

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Filed Under: Number Series

32 10769
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in series 5,15,17,85,89,623,x

A) 825 B) 759
C) 629 D) 675
 
Answer & Explanation Answer: C) 629

Explanation:

The pattern is *3,+2,*5,+4,*7,+6, . . . . .
So missing term is 623+6=629

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Filed Under: Number Series

16 10636
Q:

Choose the missing terms out of the given alternatives T, R, P, N, L, ?, ?

A) K,I B) J, H
C) J, G D) K, H
 
Answer & Explanation Answer: B) J, H

Explanation:

T - 2 = R
R - 2 = P
P - 2 = N
N - 2 = L
L - 2 = J
J - 2 = H

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Filed Under: Number Series

35 10119
Q:

Choose the missing terms out of the given alternatives ATTRIBUTION, TTRIBUTIO, RIBUTIO, IBUTI

A) IBU B) UT
C) BUT D) UTI
 
Answer & Explanation Answer: D) UTI

Explanation:

In the first step, one letter from the beginning and one from the end of a term are removed to give the next term . In the second step, two letters from the beginning of the term are removed. These two steps are repeated alternatively

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Filed Under: Number Series

38 9918