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21 Feb 2020, 02:07
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
76% (01:27) correct
24%
(01:25)
wrong
based on 99
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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 (not necessarily in that order).
21 Feb 2020, 02:23
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Quote:
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.
(1) k and m are even and p is odd.
(2) k, m, and p are consecutive integers.
Question: Is k - m - p = Odd?
For k - m - p to be ODD, either
Case 1) Two of them should be even and one must be odd OR
Case 2) All three of them should be odd
Statement 1: k and m are even and p is odd.
Case 1 applies hence answer to the question is YES
SUFFICIENT
Statement 2: k, m, and p are consecutive integers
i.e. either two of them are even and one of them is odd then k-m-p = ODD OR
two of them are Odd and one of them is even then k-m-p = EVEN
hence answer to the question is YES/NO
NOT SUFFICIENT
Answer: Option A
21 Feb 2020, 02:47
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If k, m, and p are integers, is k – m – p odd?
(1) k and m are even and p is odd.
It will be -> Even - Even - Odd = 'Odd' always
Sufficient. A D /B C E
(2) k, m, and p are consecutive integers.
Let us take the examples starting with an odd (1, 2, 3)
Odd - Even - Odd = Even
Other example where we start with an Even (2, 3, 4)
Even - Odd - Even = Odd
Two different possibilities. Insufficient.
'A' is the winner
(1) k and m are even and p is odd.
It will be -> Even - Even - Odd = 'Odd' always
Sufficient. A D /
(2) k, m, and p are consecutive integers.
Let us take the examples starting with an odd (1, 2, 3)
Odd - Even - Odd = Even
Other example where we start with an Even (2, 3, 4)
Even - Odd - Even = Odd
Two different possibilities. Insufficient.
'A' is the winner
