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Home ‣ Verbal Reasoning ‣ Number Series See What Others Are Saying!
- Question
- 1, 3, 9, 31, 128, 651, 3913
Options- A. 651
- B. 128
- C. 31
- D. 9
- Correct Answer
- 128
ExplanationAs per the details in the question the series is in the form of
Next term = ( Previous term × variable ) + ( 1 + variable )
First term = 1
Second term = First term × 1 + 2
? Second term = 1 × 1 + 2 = 3 ;
Third term = Second term × 2 + 3
? Third term = 3 × 2 + 3 = 9 ;
Similarly , we can find all others terms also.
Fourth term = Third term × 3 + 4
? Fourth term = 9 × 3 + 4 = 31 ;
Fifth term = Fourth term × 4 + 5
? Fifth term = 31 × 4 + 5 = 128 , is wrong . it should be 129 as fifth term .
Sixth term = Fifth term × 5 + 6
? Sixth term = 129 × 5 + 6 = 651 ;
Seventh term = Sixth term × 6 + 7
? Seventh term = 651 × 6 + 7 = 3913 - 1. NA
Options- A. 215
- B. 143
- C. 247
- D. 91 Discuss
- 2. 2 : 32 :: 3 :?
Options- A. 243
- B. 293
- C. 183
- D. 143 Discuss
- 3. What is always in worry?
Options- A. Difficulty
- B. Unrest
- C. Non-Cooperation
- D. Poignancy Discuss
- 4. What is found necessarily in milk?
Options- A. Cream
- B. Curd
- C. Water
- D. Whiteness Discuss
- 5. Statement:
The 'M' Cooperative Housing Society has put up a notice at its gate that sales persons are not allowed inside the society
Assumptions:
I. All the sales persons will stay away from the 'M' Cooperative Housing Society.
II. The security guard posted at the gate may be able to stop the sales persons entering the society
Options- A. if only assumption I is implicit
- B. if only assumption II is implicit
- C. if either I or II is implicit
- D. if neither I nor II are implicit Discuss
- 6. b _ y_ _ by _ b _ yt
Options- A. bgtbt
- B. btbtb
- C. atbbt
- D. cbbte Discuss
- 7. On which of the following floors does B live?
Options- A. Sixth
- B. Fourth
- C. Second
- D. Fifth Discuss
- 8. Frankness : Blunt
Options- A. Rise : Awake
- B. Weep : Laugh
- C. Sickness : Death
- D. Rest : Activity Discuss
- 9. _ _aba _ _ ba _ ab
Options- A. abbba
- B. abbab
- C. baabb
- D. bbaba Discuss
- 10. Kathak : Bharatnatyam : Odissi
Options- A. They are the name of music instruments
- B. They are the classical dance forms of India
- C. They are the folk dance forms of india
- D. They are the names of indian tribes Discuss
More questions
Correct Answer: 215
Explanation:
All others are divisible by 13.
Correct Answer: 243
Explanation:
25 = 32,
Similarly, 35 = 243
Correct Answer: Unrest
Correct Answer: Whiteness
Correct Answer:
Explanation:
both I and II follows.
Correct Answer: btbtb
Explanation:
The given letter series in below pattern.
b b y t
After completing the pattern, we will get complete letter series.
b b y t / b by t / b b yt
Correct Answer: Sixth
Explanation:
From the information given in the question, we can have the following table:
A, B, C, D, E and F live on different floors in the same building having six floors numbered one to six .From given figure we can see that B lives on the sixth floor .
Correct Answer: Rise : Awake
Explanation:
'Frankness' and 'Blunt' are synonyms and so are 'Rise' and 'Awake'.
Correct Answer: abbab
Explanation:
Correct Answer: They are the classical dance forms of India
Explanation:
'Kathak' is the classical dance of North India; 'Bharatnatyam' is the classical dance of Tamilnadu while 'Odissi' is the classical dance of Orissa.
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