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DS : is k – m – p odd

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DS : is k – m – p odd

by navami » Tue Aug 30, 2011 10:32 pm
If k, m, and p are integers, is k - m - p odd?

(1) k and m are even and p is odd.
(2) k, m, and p are consecutive integers.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient

Guess OA is A
This time no looking back!!!
Navami
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Source: — Data Sufficiency |
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by bubbliiiiiiii » Tue Aug 30, 2011 11:14 pm
Statement I:

K-M-P => even - even - odd => even - odd (since, even -even = even)

=> odd (since even - odd = odd)

SUFFICIENT

Statement II:

K,M and P are consecutive.

=> they can be either odd, even, odd or even, odd, even.

If they are even, odd, even then k-m-p = odd (from statement I)
else, k-m-p = even.

INSUFFICIENT.

Thus, A
Regards,

Pranay
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