One term in the number series is wrong. Find out the wrong term. 10, 26, 74, 218, 654, 1946, 5834
SOLUTION ANALYSIS
Correct Option: D
The correct pattern is x 3 - 4.
So, 654 is wrong and must be replaced by (218 x 3 - 4) i.e. 650.
Question 2 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 93, 309, 434, 498, 521, 533
SOLUTION ANALYSIS
Correct Option: D
The correct pattern is + 63, + 53, + 43, + 33, .....
So, 521 is wrong and must be replaced by (498 + 33) i.e. 525.
Question 3 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 46080, 3840, 384, 48, 24, 2, 1
SOLUTION ANALYSIS
Correct Option: C
The correct pattern is ÷ 12, ÷ 10, ÷ 8,÷ 6,.....
So, 24 is wrong and must be replaced by (48 + 6) i.e. 8.
Question 4 of 20
Hint
Choose the missing terms out of the given alternatives. A, G, L, P, S, ?
SOLUTION ANALYSIS
Correct Option: A
Question 5 of 20
Hint
Choose the missing terms out of the given alternatives. b e d f ? h j ? l
SOLUTION ANALYSIS
Correct Option: A
The series may be divided into groups as shown:
b e d / f ? h / j ? l
Clearly in the first group, the second and third letters are respectively three and two steps ahead of the first letter.
A similar pattern would follow in the second and third groups.
Question 6 of 20
Hint
One term in the number series is wrong. Find out the wrong term.10, 14, 28, 32, 64, 68, 132
SOLUTION ANALYSIS
Correct Option: D
The correct pattern is + 4, x 2, + 4, x 2, .....
So, 132 is wrong and must be replaced by (68 x 2) i.e. 136.
Question 7 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 1236, 2346, 3456, 4566, 5686
SOLUTION ANALYSIS
Correct Option: D
The correct pattern in the series is + 1110.
So, 5686 is wrong and must be replaced by (4566 + 1110) i.e. 5676.
Question 8 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 3, 7, 15, 39, 63, 127, 255, 511
SOLUTION ANALYSIS
Correct Option: B
The correct pattern is x 2 + 1.
So, 39 is wrong and must be replaced by (15 x 2 + 1) i.e. 31.
Question 9 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 89, 78, 86, 80, 85, 82, 83
SOLUTION ANALYSIS
Correct Option: C
The correct pattern is - 11, + 9, - 7, + 5, - 3, + 1.
So, 86 is wrong and must be replaced by (78 + 9) i.e. 87.
Question 10 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 16, 22, 30, 45, 52, 66
SOLUTION ANALYSIS
Correct Option: B
The correct pattern is + 6, + 8, + 10, + 12, + 14.
So, 45 is wrong and must be replaced by (30 + 10) i.e. 40.
Question 11 of 20
Hint
Choose the missing terms out of the given alternatives. Z, S, W, O, T, K, Q, G, ?, ?
SOLUTION ANALYSIS
Correct Option: A
The given sequence is a combination of two series:
I. Z, W, T, Q, ? and II. S, O, k, G, ?
Question 12 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 5, 27, 61, 122, 213, 340, 509
SOLUTION ANALYSIS
Correct Option: A
The terms of the series are (23 - 3), (33 - 3), (43 - 3), (53 - 3), (63 - 3), (73 - 3),
(83-3).
So, 27 is wrong and must be replaced (33 - 3) i.e. 24.
Question 13 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 24576, 6144, 1536, 386, 96, 24
SOLUTION ANALYSIS
Correct Option: B
Each term of the series is obtained by dividing the preceding term by 4.
So, 1536 is wrong and must be replaced by (1536 + 4) i.e. 384.
Question 14 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 325, 259, 202, 160, 127, 105, 94
SOLUTION ANALYSIS
Correct Option: C
The correct pattern is - 66, - 55, - 44, - 33, - 22, - 11.
So, 202 is wrong and must be replaced by (259 - 55) i.e. 204.
Question 15 of 20
Hint
Choose the missing terms out of the given alternatives. H, I, K, N, ?
SOLUTION ANALYSIS
Correct Option: C
Question 16 of 20
Hint
One term in the number series is wrong. Find out the wrong term.0, 2, 3, 5, 8, 10, 15, 18, 24, 26, 35
SOLUTION ANALYSIS
Correct Option: A
The given sequence is a combination of two series:
I. 0, 3, 8, 15, 24, 35 and II. 2, 5, 10, 18, 26
The pattern in both I and II is + 3, + 5, + 7, + 9,.....
So, in II, 18 is wrong and must be replaced by (10 + 7) i.e. 17.
Question 17 of 20
Hint
Choose the missing terms out of the given alternatives. WFB, TGD, QHG, ?
SOLUTION ANALYSIS
Correct Option: B
Question 18 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 325, 259, 202, 160, 127, 105, 94
SOLUTION ANALYSIS
Correct Option: C
The correct pattern is - 66, - 55, - 44, - 33, - 22, - 11.
So, 202 is wrong and must be replaced by (259 - 55) i.e. 204.
Question 19 of 20
Hint
Choose the missing terms out of the given alternatives. AZ, GT, MN, ?, YB
SOLUTION ANALYSIS
Correct Option: B
Question 20 of 20
Hint
One term in the number series is wrong. Find out the wrong term. 380, 188, 92, 48, 20, 8, 2
SOLUTION ANALYSIS
Correct Option: C
The correct pattern is - 192, - 96, - 48, - 24, - 12, - 6.
So, 48 is wrong and must be replaced by (92 - 48) i.e. 44.
