Series Completion problems
- 1. 4832, 5840, 6848,?
Options- A. 7815
- B. 7846
- C. 7856
- D. 7887 Discuss
Correct Answer: 7856
Explanation:
The pattern is + 1008.
So, missing term - 6848 + 1008 = 7856.
- 2. 5824, 5242,?, 4247, 3823
Options- A. 4467
- B. 4718
- C. 4856
- D. 5164 Discuss
Correct Answer: 4718
Explanation:
Each term in the series is obtained by subtracting from the preceding term the number
formed by the first three digits of the preceding term.
So, missing term = 5242 - 524 = 4718.
- 3. 2, 8, 16, 128,?
Options- A. 2042
- B. 2046
- C. 2048
- D. 2056 Discuss
Correct Answer: 2048
Explanation:
Each term in the series, except the first two terms, is the product of the preceding two terms.
So, missing term = 16 x 128 = 2048.
- 4. 1, 2, 6, 7, 21, 22, 66, 67,?
Options- A. 70
- B. 134
- C. 201
- D. 301 Discuss
Correct Answer: 201
Explanation:
The pattern is + 1, x 3, + 1, x 3, + 1, x 3, + 1,.....
So, missing term = 67 x 3 = 201.
- 5. 0.5, 0.55, 0.65,0.8,?
Options- A. 0.9
- B. 0.82
- C. 1
- D. 0.95 Discuss
Correct Answer: 1
Explanation:
The pattern is + 0.05, + 0.10, + 0.15,.....
So, missing term = 0.8 + 0.20 = 1.
- 6. 0, 2, 3, 5, 8, 10, 15, 17, 24, 26,?
Options- A. 28
- B. 30
- C. 32
- D. 35 Discuss
Correct Answer: 35
Explanation:
The given sequence is a combination of two series :
I. 0, 3, 8, 15, 24, ? and II. 2, 5, 10, 17, 26
The pattern in each one of I and II is + 3, + 5, + 7, + 9, .....
So, missing term = 24 + 11 = 35.
- 7. 11, 13, 17, 19, 23, 25,?
Options- A. 26
- B. 27
- C. 29
- D. 37 Discuss
Correct Answer: 29
Explanation:
The pattern is + 2, + 4, + 2, + 4, .....
So, missing term = 25 + 4 = 29.
- 8. 5, 2, 7, 9, 16, 25,?
Options- A. 41
- B. 45
- C. 48
- D. 52 Discuss
Correct Answer: 41
Explanation:
Each term in the series, except the first two terms, is the sum of the preceding two
terms.
So, missing term = 16 + 25 = 41.
- 9. 7, 26, 63, 124, 215, 342,?
Options- A. 391
- B. 421
- C. 481
- D. 511 Discuss
Correct Answer: 511
Explanation:
The terms of the given series are (23 - 1), (33 - 1), (43 - 1), (53 - 1), (63 - 1), (73 - 1),.....
So, missing term = (83 - 1) = (512 - 1) = 511.
- 10. 3, 12,27,48, 75, 108,?
Options- A. 147
- B. 162
- C. 183
- D. 192 Discuss
Correct Answer: 147
Explanation:
The terms of the given series are 3 x l2, 3 x 22, 3 x 32, 3 x 42, 3 x 52, 3 x 62,.....
So, missing term = 3 x 72 = 3 x 49 = 147.
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