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If n is a positive integer, is n + 425,371 odd? (1) n  268,865 is odd
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10 Apr 2018, 22:04
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Re: If n is a positive integer, is n + 425,371 odd? (1) n  268,865 is odd
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10 Apr 2018, 22:53
Bunuel wrote: If n is a positive integer, is n + 425,371 odd?
(1) n  268,865 is odd. (2) 890,214n is even. So basically we are asked whether (n + odd) is odd or not? Given 'n' is a positive integer, this will be odd when 'n' is even. So we need to know for sure whether n is even or not. (1) n  odd is odd, this can only happen when n is even. Sufficient. (2) I assume this means 890214 * n (product) or even*n. Now even multiplied by any integer (whether even or odd) will give even result, So we cannot be sure whether 'n' is odd or even. Not sufficient. Hence A answer



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Re: If n is a positive integer, is n + 425,371 odd? (1) n  268,865 is odd
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10 Apr 2018, 23:03
amanvermagmat wrote: Bunuel wrote: If n is a positive integer, is n + 425,371 odd?
(1) n  268,865 is odd. (2) 890,214n is even. So basically we are asked whether (n + odd) is odd or not? Given 'n' is a positive integer, this will be odd when 'n' is even. So we need to know for sure whether n is even or not. (1) n  odd is odd, this can only happen when n is even. Sufficient. (2) I assume this means 890214 * n (product) or even*n. Now even multiplied by any integer (whether even or odd) will give even result, So we cannot be sure whether 'n' is odd or even. Not sufficient. Hence A answerHow are you assuming 890214n as 890214*n ? It can happen the other way too. If n is 44 then 890214n will be 89021444



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If n is a positive integer, is n + 425,371 odd? (1) n  268,865 is odd
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10 Apr 2018, 23:09
teaserbae wrote: amanvermagmat wrote: Bunuel wrote: If n is a positive integer, is n + 425,371 odd?
(1) n  268,865 is odd. (2) 890,214n is even. So basically we are asked whether (n + odd) is odd or not? Given 'n' is a positive integer, this will be odd when 'n' is even. So we need to know for sure whether n is even or not. (1) n  odd is odd, this can only happen when n is even. Sufficient. (2) I assume this means 890214 * n (product) or even*n. Now even multiplied by any integer (whether even or odd) will give even result, So we cannot be sure whether 'n' is odd or even. Not sufficient. Hence A answerHow are you assuming 890214n as 890214*n ? It can happen the other way too. If n is 44 then 890214n will be 89021444 Yes, that case could also be there. Thats why I wrote 'I assume' because if I had complete clarity then I wouldn't have needed to assume anything. If second statement means 890214*n = even then n could be even or odd. But if second statement means 890214n (n is just placed after the digit 4) is Even  then n will be even.



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Re: If n is a positive integer, is n + 425,371 odd? (1) n  268,865 is odd
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11 Apr 2018, 09:18
Bunuel wrote: If n is a positive integer, is n + 425,371 odd?
(1) n  268,865 is odd. (2) 890,214n is even. Given : n > 0Question: Is n + odd = odd ?Or Is n = odd  odd ? Or Is n = even ? St 1: n  odd = odd Or n = odd + odd Or n = even SufficientSt 2: n * even = evenOr n = \(\frac{even}{even}\) Or n = even or odd Insufficientn = \(\frac{6}{2}\) = 3 (Odd) n =\(\frac{8}{4}\) = 2 (Even) Hence (A)
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Re: If n is a positive integer, is n + 425,371 odd? (1) n  268,865 is odd &nbs
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11 Apr 2018, 09:18






