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Find the next 3 numbers in the sequence.
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27 Sep 2019, 07:24
27 Sep 2019, 07:24
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Find the next 3 numbers in the sequence.
1,1,2,3,5,8...........
Indicate all that apply
A. 12
B. 13
C. 14
D. 21
E. 22
F. 33
G. 34
H. 55
Kudos for the right answer and explanation
1,1,2,3,5,8...........
Indicate all that apply
A. 12
B. 13
C. 14
D. 21
E. 22
F. 33
G. 34
H. 55
Kudos for the right answer and explanation
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: Find the next 3 numbers in the sequence.
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27 Sep 2019, 09:32
27 Sep 2019, 09:32
1
Carcass wrote:
Find the next 3 numbers in the sequence.
1,1,2,3,5,8...........
Indicate all that apply
A. 12
B. 13
C. 14
D. 21
E. 22
F. 33
G. 34
H. 55
Kudos for the right answer and explanation
1,1,2,3,5,8...........
Indicate all that apply
A. 12
B. 13
C. 14
D. 21
E. 22
F. 33
G. 34
H. 55
Kudos for the right answer and explanation
The GRE does not test our ability to find missing terms in a sequence unless the sequence is defined for us.
The reason is that there's no way that we can definitively determine ONE (and ONLY ONE) pattern in a given sequence.
Consider this example: 1, 2, 4, __
What's the missing term here?
Well, if we read the sequence as doubling from one term to the next, the next term is 8
HOWEVER, if we notice that we keep adding successively larger integers to each term (i.e., add 1, then add 2, then add 3, etc.) the next term is 7
Likewise, (if we want to get a bit silly), we might look at the given sequence (5, 28, 57, 78, 125, __) and say that the missing term is 88. Why?
Because 5 is my favorite number, 28 is my 2nd favorite number, 57 is my 3rd favorite number, ... and 88 is 6th favorite number.
So, rest assured, you won't be required to find missing terms on a GRE sequence, unless the sequence is defined for us.
Cheers,
Brent
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Status:GRE Quant Tutor
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Given Kudos: 9
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Concentration: General Management
Schools: XLRI Jamshedpur, India - Class of 2014
GMAT 1: 700 Q51 V31
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WE:Engineering (Computer Software)
Find the next 3 numbers in the sequence.
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02 Oct 2022, 09:56
02 Oct 2022, 09:56
We need to find the next 3 numbers in the sequence 1,1,2,3,5,8
Given numbers are part of Fibonacci Series.
\(T_{n+2} = T_{n+1} + T_{n}\) for n≥3 and \(T_1\) = 1 and \(T_2\) = 2
=> Term after 8 = Sum of previous two terms = 5 + 8 = 13
=> Next term = 8 + 13 = 21
=> Next term = 13 + 21 = 34
So, Answer will be B, D, G
Hope it helps!
Watch the following video to learn How to Sequence problems
Given numbers are part of Fibonacci Series.
\(T_{n+2} = T_{n+1} + T_{n}\) for n≥3 and \(T_1\) = 1 and \(T_2\) = 2
=> Term after 8 = Sum of previous two terms = 5 + 8 = 13
=> Next term = 8 + 13 = 21
=> Next term = 13 + 21 = 34
So, Answer will be B, D, G
Hope it helps!
Watch the following video to learn How to Sequence problems
