CLOCK ur timing on this gmatclub problem
A sequence is defined as follows:
An = n/(n + 1)
If n is a positive integer, then how many of the first 100 terms of this sequence are less than 0.891?
a) 7
b) 8
c) 9
d) 10
e) 12
OA is b 8 terms are less than .891
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n/(n+1) gmatclub
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arora007
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amising6
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arora007 wrote:CLOCK ur timing on this gmatclub problem
A sequence is defined as follows:
An = n/(n + 1)
If n is a positive integer, then how many of the first 100 terms of this sequence are less than 0.891?
a) 7
b) 8
c) 9
d) 10
e) 12
OA is b 8 terms are less than .891
.89= approx .9 so
.9=9/10
so there will be 8 terms excluding 9 as 9 will give .9
1 to 8
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outreach
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i just took the middle number from the answer choice since the answers are in sorted order.
option C) 9
9/10 = 0.90. it is greater so proceed to option b
option B) 8
8/9 = 0.89
hence correct
option C) 9
9/10 = 0.90. it is greater so proceed to option b
option B) 8
8/9 = 0.89
hence correct
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I have a confusion here, the question says first 100 terms of this sequence. From this how can we assume that the sequence starts with n=1?arora007 wrote:CLOCK ur timing on this gmatclub problem
A sequence is defined as follows:
An = n/(n + 1)
If n is a positive integer, then how many of the first 100 terms of this sequence are less than 0.891?
a) 7
b) 8
c) 9
d) 10
e) 12
OA is b 8 terms are less than .891
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papgust
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The question says "n is a positive integer". So, you start from 1. First term of the sequence starts from 1/2 or 0.5.
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"n is a positive integer" could also mean that the series starts with n=2 or 3 or.....papgust wrote:The question says "n is a positive integer". So, you start from 1. First term of the sequence starts from 1/2 or 0.5.
