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11 Sep 2023, 01:30
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E
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Difficulty:
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Question Stats:
87% (01:03) correct
13%
(01:14)
wrong
based on 102
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In the following arithmetic sequence: 7, 13, 19, 25,... what is the place of the term with a value of 127?
A. 17
B. 18
C. 19
D. 20
E. 21
A. 17
B. 18
C. 19
D. 20
E. 21
11 Sep 2023, 05:24
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In this Sequence A1=7, D=6
We know An= A1+(n-1)D
127 = 7+ (n-1) 6
n= 21
So E
We know An= A1+(n-1)D
127 = 7+ (n-1) 6
n= 21
So E
11 Sep 2023, 05:46
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Given a arithmetic sequence: 7, 13, 19, 25,... and we need to find the place of the term with a value of 127?
First term, a = 7
Common difference, d = 13-7 = 6
=> \(n^{th}\) term, \({T_n} = a + (n-1)*d\)
=> 127 = 7 + (n-1)*6
=> n-1 = \(\frac{120}{6}\) = 20
=> n = 21
So, Answer will be E
Hope it helps!
Watch the following video to learn How to Sequence problems
First term, a = 7
Common difference, d = 13-7 = 6
=> \(n^{th}\) term, \({T_n} = a + (n-1)*d\)
=> 127 = 7 + (n-1)*6
=> n-1 = \(\frac{120}{6}\) = 20
=> n = 21
So, Answer will be E
Hope it helps!
Watch the following video to learn How to Sequence problems
