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What is the value of a two-digit positive integer n, where i
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Updated on: 17 Jun 2013, 02:19
Updated on: 17 Jun 2013, 02:19
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What is the value of a two-digit positive integer n, where is n<=85.
(1) n has 12 factors, inclusive of 1 and n itself
(2) n is a multiple of 3.
(1) n has 12 factors, inclusive of 1 and n itself
(2) n is a multiple of 3.
Re: What is the value of a two-digit positive integer n, where i
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17 Jun 2013, 02:11
17 Jun 2013, 02:11
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fozzzy wrote:
What is the value of a two-digit positive integer n, where is n<=85.
(1) n has 12 factors, inclusive of 1 and n itself
(2) n is a multiple of 3.
(1) n has 12 factors, inclusive of 1 and n itself
(2) n is a multiple of 3.
From F.S 1 , for n = \(2^2*3*5\), the number of factors = 3*2*2 = 12
Again, for n = \(2^3*3^2\), the number of factors = 4*3 = 12
Insufficient.
F. S 2 is clearly Insufficient.
Both combined together, we can use the above 2 examples only, it is again Insufficient.
E.
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General Discussion
Re: What is the value of a two-digit positive integer n, where i
[#permalink]
17 Jun 2013, 02:18
17 Jun 2013, 02:18
Expert Reply
mau5 wrote:
fozzzy wrote:
What is the value of a two-digit positive integer n, where is n<=85.
(1) n has 12 factors, inclusive of 1 and n itself
(2) n is a multiple of 3.
(1) n has 12 factors, inclusive of 1 and n itself
(2) n is a multiple of 3.
From F.S 1 , for n = \(2^2*3*5\), the number of factors = 3*2*2 = 12
Again, for n = \(2^3*3^2\), the number of factors = 4*3 = 12
Insufficient.
F. S 2 is clearly Insufficient.
Both combined together, we can use the above 2 examples only, it is again Insufficient.
E.
Yes, the answer is E: n could be 60 or 72.
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Re: What is the value of a two-digit positive integer n, where i
[#permalink]
17 Jun 2013, 02:23
17 Jun 2013, 02:23
Can anyone explain the answer pls. I am finding it difficult.
Re: What is the value of a two-digit positive integer n, where i
[#permalink]
17 Jun 2013, 02:30
17 Jun 2013, 02:30
Great Explanation Mau totally missed the case of 60...
Refer to bunuel's post on this thread it explains the concept tested in this question
if-n-has-15-positive-divisors-inclusive-of-1-and-n-then-wh-154437.html
samara15000 wrote:
Can anyone explain the answer pls. I am finding it difficult.
Refer to bunuel's post on this thread it explains the concept tested in this question
if-n-has-15-positive-divisors-inclusive-of-1-and-n-then-wh-154437.html
Re: What is the value of a two-digit positive integer n, where i
[#permalink]
15 Mar 2016, 10:10
15 Mar 2016, 10:10
The key to solving these kind of questions is to factorise the number of factors
so the numbers are only 60 or 72
hence E as they are both divisible by 3
so the numbers are only 60 or 72
hence E as they are both divisible by 3
Re: What is the value of a two-digit positive integer n, where i
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11 Jul 2023, 04:49
11 Jul 2023, 04:49
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Re: What is the value of a two-digit positive integer n, where i [#permalink]
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