Series MCQ Set 4
Showing question 16 to 20 of total 29 MCQs
MCQ Set: 4
Solve the question on your notebook and check it by clicking (Answer and Explanation) below question.
Question No: 16
In each of the following questions, one term in the number series is wrong. Find the wrong term.
4, 7, 9, 10, 13, 15, 16, 20
- 7
- 15
- 16
- 20
Answer and Explanation
Answer: D
Explanation
The pattern in the given series is +3 +2 +1 +3 +2 + 1 …….
The wrong term is 20
The correct term should be 16 + 3 = 19
Question No: 17
In the following questions, one term in the number series is wrong. Find the wrong term.
10, 14, 28, 34, 64, 68, 136
- 34
- 28
- 68
- 64
Answer and Explanation
Answer: A
Explanation
The pattern in the given series is +4 x2 +4 x2 +4 x2….
The wrong number here is 34.
The correct number should be: 28 + 4 = 32
Question No: 18
In the following questions, one term in the number series is wrong. Find the wrong term.
15, 16, 20, 30, 45, 70
- 16
- 30
- 45
- 70
Answer and Explanation
Answer: B
Explanation
The pattern in the given series is - +1 +4 +9 +16 +25 +36…..
The wrong term is 30
The correct term should be: 20 + 9 = 29
Question No: 19
In the following question, one term in the number series is wrong. Find the wrong term.
- 10
- 21
- 63
- 129
Answer and Explanation
Answer: C
Explanation
The pattern in the give series is –
x 2 + 1, x 3 + 1, x 2 + 1, x 3 + 1
The wrong number is 63
The correct number should be: (21 x 3) + 1 = 64
Question No: 20
In the following question, one term in the number series is wrong. Find the wrong term.
125, 126, 124, 127, 122, 128
- 122
- 124
- 125
- 126
Answer and Explanation
Answer: A
Explanation
The correct sequence is –
+1 -2 +3 -4 +5 -6
The wrong number is 122
The correct number should be 127 - 4 = 123