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- Question
Find the wrong number in the series. 1, 2, 6, 15, 31, 56, 91
Options- A. 31
- B. 15
- C. 56
- D. 91
- Correct Answer
- 91
ExplanationThe difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35.
This is clearly ,
Here 35 is wrong, So our wrong number is 91
- 1. Find out the wrong term in the series 2, 3, 4, 4, 6, 8, 9, 12, 16
Options- A. 9
- B. 12
- C. 16
- D. 8 Discuss
- 2. In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?).Choose the missing terms out of the given alternatives. 2Z5, 7Y7, 14X9, 23W11, 34V13, ?
Options- A. 47U15
- B. 47V14
- C. 45U15
- D. 27U24 Discuss
- 3. Find out the wrong term in the series 2, 5, 10, 50, 500, 5000
Options- A. 5000
- B. 500
- C. 10
- D. 50 Discuss
- 4. Find the missing number in the following series? 3, 5, 5, 19, 7, 41, 9, ?
Options- A. 71
- B. 61
- C. 79
- D. 69 Discuss
- 5. 1, 2, 3, 10, ?, 9802
Options- A. 99
- B. 199
- C. 299
- D. 999 Discuss
- 6. 8, 15, 28, 53, ?, 199
Options- A. 101
- B. 102
- C. 103
- D. 104 Discuss
- 7. What should come in place of question mark (?) in the following number series? 132 156 ? 210 240 272
Options- A. 196
- B. 182
- C. 199
- D. 204 Discuss
- 8. Find the wrong number in the series. 3, 8, 15, 24, 34, 48, 63
Options- A. 15
- B. 24
- C. 34
- D. 48 Discuss
- 9. Choose the missing terms out of the given alternatives Z, X, S, I, R, R, ?, ?
Options- A. J, I
- B. K, M
- C. G, I
- D. J, K Discuss
- 10. Choose the missing terms out of the given alternatives Z, S, W, O, T, K, Q, G, ?, ?
Options- A. N,D
- B. N,C
- C. O,D
- D. O,C Discuss
Number Series problems
Search Results
Correct Answer: 9
Explanation:
The given sequence is a combination of three series:
i)1st, 4th, 7th terms i.e, 2, 4, 9
ii)2nd, 5th, 8th terms i.e, 3, 6, 12
iii)3rd, 6th, 9th terms i.e, 4, 8, 16
In each one of i, ii, iii, each term is twice the preceding term.
So, 9 is wrong and must be replaced by (4*2) = 8
Correct Answer: 47U15
Explanation:
The first numbers increase by 5, 7, 9, 11....
The letters move one step backward.
The last numbers are consecutive odd numbers.
Correct Answer: 5000
Explanation:
Each term of the series is the product of the preceding two terms
So, 5000 is wrong and it must be replaced by (500*50) = 25000
Correct Answer: 71
Explanation:
Fiest series : 3, 5, 7, 9
Second series : 5, 19, 41, ?
Difference of Second series are 14, 22, 30 etc
Next term is 41+30 i.e equal to 71
Correct Answer: 99
Explanation:
Correct Answer: 102
Explanation:
Here the series of the form is
53 x 2 - 4 = 106 - 4 = 102
Correct Answer: 182
Explanation:
The given series follows a logic that
11 x 12, 12 x 13, 13 x 14, 14 x 15, 15 x 16,...
So the missing number is 13 x 14 = 182
Correct Answer: 34
Explanation:
The difference between consecutive numbers of the given series are respectively 5, 7, 9, 11, 13, and 15.
Therefore, 24+11=35 But in your problem it is given as 34.so 34 is wrong number
Correct Answer: G, I
Explanation:
Z - 2 = X
X - 5 = S
S - 10 = I
I - 17 = R
R - 26 = R
R - 37 = G
G - 50 = I
The series 2, 5, 10, 17, 26, 37, 50 is obtained by the pattern +3, +5, +7, +9, . . . .
Correct Answer: N,C
Explanation:
The given sequence a combination of two series:
I)Z, W, T, Q, ? and II)S, O, K, G, ?
The pattern I is
Z - 3 = W
W - 3 = T
T - 3 = Q
Q - 3 = N
The pattern in II is
S - 4 = O
O - 4 = K
K - 4 = G
G - 4 = C
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