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29 Apr 2011, 02:24
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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Question Stats:
100% (02:41) correct
0%
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wrong
based on 2
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29 Apr 2011, 05:00
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(1) says
10 + (n-1) > 30
=> n > 21
(1) is not sufficient as n could be 22 or 25
(2)
{10 + (n-1)}/n > 1.36
=> 9 + n > 1.36n
=> 0.36n < 9
=> 0.04n < 1
=> n < 25
Sufficient as n is an integer, so n !> 24
Answer - B
10 + (n-1) > 30
=> n > 21
(1) is not sufficient as n could be 22 or 25
(2)
{10 + (n-1)}/n > 1.36
=> 9 + n > 1.36n
=> 0.36n < 9
=> 0.04n < 1
=> n < 25
Sufficient as n is an integer, so n !> 24
Answer - B
