Series MCQ Set 5
Showing question 21 to 25 of total 29 MCQs
MCQ Set: 5
Solve the question on your notebook and check it by clicking (Answer and Explanation) below question.
Question No: 21
In the following question, one term in the number series is wrong. Find the wrong term.
3, 2, 8, 12, 13, 24, 18, 32, 23, 42
- 12
- 13
- 18
- 24
Answer and Explanation
Answer: D
Explanation
The given series is a combination of two series.
I: 3 8 13 18 23
II: 2 9 24 32 42
In I, the pattern is + 5, in II the pattern is + 10
The wrong number here is 24 in series II.
The correct number should be: 12 + 10 = 22
Question No: 22
2, 5, 9, 19, 37, ?
- 75
- 76
- 78
- 76
Answer and Explanation
Answer: A
Explanation
In this series, we have,
2 x 2 + 1 = 5
5 x 2 - 1 = 9
9 x 2 + 1 = 19
19 x 2 - 1 = 37
So, the next term is
37 x 2 + 1 = 75
Question No: 23
1, 4, 27, 16, 125, ?, 343
- 81
-
64
-
36
- 25
Answer and Explanation
Answer: C
Explanation
The given series consists of cubes of odd numbers and squares of even numbers i.e. 13, 22, 33, 42,…
The next term is 62 = 36
Question No: 24
1, 11, 34, 77, 143, ?
]
- 233
- 235
- 236
- 237
Answer and Explanation
Answer: D
Explanation
The given series is a triangular pattern series
series
The next term should be – 143 + (66 + 23 + 5 ) = 143 + 94 = 237
Question No: 25
2, 3, 3, 5, 10, 13, 39, ?, 172, 177
- 41
- 42
- 43
- 45
Answer and Explanation
Answer: C
Explanation
The pattern in the given series is:
+1, x1, +2, x2, +3, x3, +4, x4, +5, x5 …..
The missing number should be: 39 + 4 = 43