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IBM Number Series Questions and Answers - Interview Preparation MCQ


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15 Questions MCQ Test - IBM Number Series Questions and Answers

IBM Number Series Questions and Answers for Interview Preparation 2024 is part of Interview Preparation preparation. The IBM Number Series Questions and Answers questions and answers have been prepared according to the Interview Preparation exam syllabus.The IBM Number Series Questions and Answers MCQs are made for Interview Preparation 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for IBM Number Series Questions and Answers below.
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IBM Number Series Questions and Answers - Question 1

5, 21, 69, 213, 645, ?

Detailed Solution for IBM Number Series Questions and Answers - Question 1

5
5 x 3 + 6 = 21
21 x 3 + 6 = 69
69 x 3 + 6 = 213
213 x 3 + 6 = 645
645 x 3 + 6 = 1941.
Therefore, the next number in the series is 1941.

IBM Number Series Questions and Answers - Question 2

496, 492, 483, 467, ?

Detailed Solution for IBM Number Series Questions and Answers - Question 2

496 – 492 = 4 = 22
492 – 483 = 9 = 32
483 – 467 = 16 = 42
So, the next has to be a difference of 25 = 52
467 – 25 = 442
Therefore, the next number in the given series is 442.

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IBM Number Series Questions and Answers - Question 3

8(97)6, 4(56)5, 6(75)4, 7(?)8

Detailed Solution for IBM Number Series Questions and Answers - Question 3

If we observe, In 8(97)6 we can have 97- 86 = 11
4(56)5 we can have 56 – 45 = 11
6(75)4 we can have 75 – 64 = 11
So, the difference is 11.
? – 78 = 11
Hence, ? = 78+11 = 89

IBM Number Series Questions and Answers - Question 4

2, 1, (1/2), (1/4), ?

Detailed Solution for IBM Number Series Questions and Answers - Question 4

This is a simple division series; each number is one-half of the previous number. In other terms to say, the number is divided by 2 successively to get the next result.

2
2/2 = 1
1/2 = 1/2
(1/2)/2 = 1/4
(1/4)/2 = 1/8
So, ? is (1/8).

IBM Number Series Questions and Answers - Question 5

1.5, 2.3, 3.1, ?, 4.7

Detailed Solution for IBM Number Series Questions and Answers - Question 5

However, In this simple addition series, each number increases by 0.8.

IBM Number Series Questions and Answers - Question 6

544, 509, 474, 439, ?

Detailed Solution for IBM Number Series Questions and Answers - Question 6

If you observe, Each number is 35 less than the previous number.

IBM Number Series Questions and Answers - Question 7

Find the wrong number in the given sequence
31, 2, 41, 3, 52, 4, 61, 5, 71, 6

Detailed Solution for IBM Number Series Questions and Answers - Question 7

In this sequence, there is a combination of two given series:
I. 31, 41, 52, 61, 71 and II. 2, 3, 4, 5, 6
Here, the pattern in I is + 10
Therefore, 52 is wrong and should be replaced by the previous number 41+10 = 51.

IBM Number Series Questions and Answers - Question 8

Find the wrong number in the given sequence
10, 5, 19, 12, 39, 26, 73, 54

Detailed Solution for IBM Number Series Questions and Answers - Question 8

The sequence is a combination of the following two series:
I. 10, 19, 39, 73, and II. 5, 12, 26, 54
The pattern in I becomes + 9, + 18, + 36
According to the series, 37 is the correct number.
Hence, 39 is the wrong number

IBM Number Series Questions and Answers - Question 9

Find the wrong number in the given series
1, 125, 729, 2177

Detailed Solution for IBM Number Series Questions and Answers - Question 9

Given 1, 125, 729, 2177
Let’s assume 1 = 13 , 125 = 53, 729 = 93.
However, the number difference is 40
So, the next number would be 133= 2197
Therefore, 2177 is wrong.

IBM Number Series Questions and Answers - Question 10

1023, 987, 915, 807, ?

Detailed Solution for IBM Number Series Questions and Answers - Question 10

1023 – 36 = 987
987 – 72 = 915
915 – 108 = 807
807 – 144 = 663

IBM Number Series Questions and Answers - Question 11

460, 92, 36.8, 22.08, ?

Detailed Solution for IBM Number Series Questions and Answers - Question 11

460*(1/5) = 92
92*(2/5) = 36.8
36.8*(3/5) = 22.08
22.08*(4/5) = 17.664

IBM Number Series Questions and Answers - Question 12

8, 4, 4, 6, 12, ?

Detailed Solution for IBM Number Series Questions and Answers - Question 12

8*(1/2) = 4
4*(1) = 4
4*(3/2) = 6
6*(2) = 12
12*(5/2) = 30

IBM Number Series Questions and Answers - Question 13

15 , 22, 72, 552 , ?

Detailed Solution for IBM Number Series Questions and Answers - Question 13

15×2 – 8 = 22
22×4 – 16 = 72
72×8 – 24 = 552
552×16 – 32 = 8800

IBM Number Series Questions and Answers - Question 14

69, 77.28, 86.55, 96.936, ?

Detailed Solution for IBM Number Series Questions and Answers - Question 14

69 + (12*69/100) = 69 + 8.28 = 77.28
77.28 + (12*77.28/100) = 77.28 + 9.27 = 86.55
86.55 + (12*86.55/100) = 86.55 +10.386 = 96.936
96.936 + 11.632 = 108.568

IBM Number Series Questions and Answers - Question 15

980, 147, 28, 11, 8.57, ?

Detailed Solution for IBM Number Series Questions and Answers - Question 15

980/7 + 7 = 147
147/7 +7 = 28
28/7 + 7 = 11
11/7 + 7 = 8.57
8.57 /7 +7 = 8.224

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