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14, 23, 32, 41, 50, 59, … In the sequence above, each term is 9 more
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10 May 2021, 07:29
10 May 2021, 07:29
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14, 23, 32, 41, 50, 59, …
In the sequence above, each term is 9 more than the previous term. What is the 41st term of the sequence?
A) 360
B) 365
C) 369
D) 374
E) 383
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
In the sequence above, each term is 9 more than the previous term. What is the 41st term of the sequence?
A) 360
B) 365
C) 369
D) 374
E) 383
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Re: 14, 23, 32, 41, 50, 59, … In the sequence above, each term is 9 more
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10 May 2021, 07:50
10 May 2021, 07:50
1
Solution:
Tn=a+(n-1)d
=14+(41-1)9
=14+360
=374
IMO D
Hope this helps!
Tn=a+(n-1)d
=14+(41-1)9
=14+360
=374
IMO D
Hope this helps!
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: 14, 23, 32, 41, 50, 59, … In the sequence above, each term is 9 more
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10 May 2021, 08:35
10 May 2021, 08:35
1
Carcass wrote:
14, 23, 32, 41, 50, 59, …
In the sequence above, each term is 9 more than the previous term. What is the 41st term of the sequence?
A) 360
B) 365
C) 369
D) 374
E) 383
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
In the sequence above, each term is 9 more than the previous term. What is the 41st term of the sequence?
A) 360
B) 365
C) 369
D) 374
E) 383
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
The above posts apply a formula for arithmetic sequences.
However, if you don't know that formula, you can also solve the question by looking for a pattern.
term1 = 14
term2 = 14 + 9
term3 = 14 + 9 + 9
term4 = 14 + 9 + 9 + 9
term5 = 14 + 9 + 9 + 9 + 9
.
.
.
.
term41 = 14 + (sum of forty 9's)
= 14 + (360)
= 374
= D
Cheers,
Brent
