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What is the median of set A {8, 15, 9, 4, N}? [#permalink]
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08 Oct 2014, 14:39
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Re: What is the median of set A {8, 15, 9, 4, N}? [#permalink]
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08 Oct 2014, 22:48
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Bunuel wrote: Tough and Tricky questions: Statistics What is the median of set A {8, 15, 9, 4, N}? (1) N is a prime and N^6 is even (2) 2N + 14 < 20 A. 1) N is prime and N^6 is even implies N is 2 (as all other primes are odd and odd^6 = odd) hence A is sufficient. 2) 2N + 14 < 20 N < 3 clearly insufficient.
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Re: What is the median of set A {8, 15, 9, 4, N}? [#permalink]
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08 Oct 2014, 23:23
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Bunuel wrote: Tough and Tricky questions: Statistics What is the median of set A {8, 15, 9, 4, N}? (1) N is a prime and N^6 is even (2) 2N + 14 < 20 This is really tricky question, which is based on the the concept that negative numbers can not be prime. 1. Smallest prime is 2 and it also happens to be an even number, and 2^6 is even. Thus N = 2. 2. 2N + 14 < 20 => N < 6 Thus N can have infinite values. Thus A
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Re: What is the median of set A {8, 15, 9, 4, N}? [#permalink]
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25 Jul 2016, 00:37
thefibonacci wrote: Bunuel wrote: Tough and Tricky questions: Statistics What is the median of set A {8, 15, 9, 4, N}? (1) N is a prime and N^6 is even (2) 2N + 14 < 20 A. 1) N is prime and N^6 is even implies N is 2 (as all other primes are odd and odd^6 = odd) hence A is sufficient. 2) 2N + 14 < 20 N < 3 clearly insufficient. Hi, I have a silly question. Why is n<3 insufficient. Does it not point towards the fact the N=2? Shouldnt the answer be D?



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Re: What is the median of set A {8, 15, 9, 4, N}? [#permalink]
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25 Jul 2016, 00:46
premjr85@gmail.com wrote: thefibonacci wrote: Bunuel wrote: Tough and Tricky questions: Statistics What is the median of set A {8, 15, 9, 4, N}? (1) N is a prime and N^6 is even (2) 2N + 14 < 20 A. 1) N is prime and N^6 is even implies N is 2 (as all other primes are odd and odd^6 = odd) hence A is sufficient. 2) 2N + 14 < 20 N < 3 clearly insufficient. Hi, I have a silly question. Why is n<3 insufficient. Does it not point towards the fact the N=2? Shouldnt the answer be D? N < 3 means that N can be ANY number less than 3, not necessarily 2. It can be say, 1000 or 1000000 or 0 or 1 or 1.2.
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Re: What is the median of set A {8, 15, 9, 4, N}? [#permalink]
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17 Sep 2016, 09:58
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alanforde800Maximus wrote: What is the median of set A {8, 15, 9, 4, N}?
1) N is a prime and N^6 is even.
2) 2N + 14 < 20
Please assist with above problem. 1) N^6 is even ,it means N is even number Further any even number which is prime also is only 2. So we have N=2 ,thus we can calculate median of set.....sufficient 2)2N + 14 < 20 2N < 20 14 N<3 so N can have as many values <3 so we cannot calculate median of given set.........insufff.. Ans A



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Re: What is the median of set A {8, 15, 9, 4, N}? [#permalink]
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07 Jun 2017, 22:59
Bunuel wrote: Tough and Tricky questions: Statistics What is the median of set A {8, 15, 9, 4, N}? (1) N is a prime and N^6 is even (2) 2N + 14 < 20 We don't necessarily need to know the exact value of N to find the median of the set (middle number) but we possibly need to know a range. Statement 1 Any odd number to any power will always result in an odd number the only prime number that satisfies the condition in statement 1 is the number 2 sufficient Statement 2 This reduces to 2n <6 n < 3 There are infinite possibilities for "N" (∞, 2)  insufficient Hence "A"



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Re: What is the median of set A {8, 15, 9, 4, N}? [#permalink]
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10 Sep 2017, 21:31
Bunuel wrote: Tough and Tricky questions: Statistics What is the median of set A {8, 15, 9, 4, N}? (1) N is a prime and N^6 is even (2) 2N + 14 < 20 Primes, indeed, can only be positive. I think this is a bit beyond a 500 level question. St 1 Only 2 can satisfy this value insuff St 2 n could be 500 or 2 or 0 which would alter the median insuff A




Re: What is the median of set A {8, 15, 9, 4, N}?
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