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- Question
2, 8, 16, 128,?
Options- A. 2042
- B. 2046
- C. 2048
- D. 2056
- Correct Answer
- 2048
ExplanationEach term in the series, except the first two terms, is the product of the preceding two terms.So, missing term = 16 x 128 = 2048.
Series Completion problems
Search Results
- 1. 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 numberformed by the first three digits of the preceding term.
So, missing term = 5242 - 524 = 4718.
- 2. 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.
- 3. 2, 15, 4, 12, 6, 7,?,?
Options- A. 8, 8
- B. 8, 0
- C. 3, 8
- D. None of these Discuss
Correct Answer: 8, 0
Explanation:
Let the missing terms of the series be x1 and x2.Thus, the sequence 2, 15, 4, 12, 6, 7, x1 x2 is a combination of two series :
I. 2, 4, 6, x1 and II. 15, 12, 7, x2I consists of consecutive even numbers.
So, missing term, x1 = 8.
The pattern in II is - 3, - 5,......So, missing term, x2 = 7 - 7 = 0.
- 4. 1, 1, 2, 6, 24,?, 720
Options- A. 100
- B. 104
- C. 108
- D. 120 Discuss
Correct Answer: 120
Explanation:
The pattern is x 1, x 2, x 3, x 4,.....So, missing term = 24 x 5 = 120.
- 5. On Children's Day, sweets were to be equally distributed among 175 children in a school. Actually on the Children's Day, 35 children were absent and therefore each child got 4 sweets extra. Total how many sweets were available for distribution?
Options- A. 2400
- B. 2480
- C. 2680
- D. 2800 Discuss
Correct Answer: 2800
Explanation:
- 6. 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.
- 7. 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.
- 8. 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.
- 9. 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.
- 10. 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 twoterms.
So, missing term = 16 + 25 = 41.
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