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Re: Is the integer P odd? - DS [#permalink]
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jrzayev001
What about P to be zero?


p cannot be zero, because then the given fact statements will not hold good. Think about it.
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Re: Is the integer P odd? - DS [#permalink]
Yes, i did not think about that :)
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Re: Is the integer P odd? [#permalink]
Is the integer P odd?

(1) The sum of P, P + 4, and P+ 11 is even.
(2) The sum of P – 3, P, and P+ 11 is odd.


St 1: Let us add all the terms; we get,

3P + 15 = even ..... Hence, 3P is odd ( since even - 15 = Odd)
Therefore P is odd
Sufficient.

St 2: Let us add all the terms; we get,

3P + 8 = odd .... Hence, 3P is odd (since, odd- 8 = odd)
Therefore P is odd
Sufficient.

Answer D
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Re: Is the integer P odd? [#permalink]
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St 1: P + P+4+P+11 = 3p +15 =3(P+5) = Even
Odd * Even ( Odd + Odd) = Even

St 2: P-3+P+P+11 = 3P + 8 = Odd
Odd (Odd * Odd) + Even = Odd

Hence, D
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Re: Is the integer P odd? [#permalink]
jrzayev001
Is the integer P odd?

(1) The sum of P, P + 4, and P+ 11 is even.
(2) The sum of P – 3, P, and P+ 11 is odd.


1 means 3p + 15 is even, so 3p is odd,
so yes p is odd

2 means 3p + 8 is odd, so 3p is odd - 8 = odd
So p is odd.

D it is
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Re: Is the integer P odd? [#permalink]
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Re: Is the integer P odd? [#permalink]
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