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10 Oct 2006, 09:04
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
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75% (00:57) correct
25%
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based on 667
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Set S consists of 20 different positive integers. How many of the integers in S are odd?
(1) 10 of the integers in S are even
(2) 10 of the integers in S are multiples of 4
(1) 10 of the integers in S are even
(2) 10 of the integers in S are multiples of 4
I chose D, in that each stmt. is sufficient but the answer is A. Can someone explain why stmt. 2 is not sufficient? All multiples of 4 are even (such as 4, 8, 12, 16, 20, 24, 28, 32....), so if we have 10, the other ten integers must be odd...am I missing something?
Any help is appreciated, thx!
Any help is appreciated, thx!
10 Oct 2006, 09:07
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Clear A
Statement 1:
10 are odd and all are positive integers.
SUFF
Statement 2:
10 are multiples of 4. There could be others that are even but not multiples of 4. eg. 6
INSUFF
Statement 1:
10 are odd and all are positive integers.
SUFF
Statement 2:
10 are multiples of 4. There could be others that are even but not multiples of 4. eg. 6
INSUFF
10 Oct 2006, 10:02
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anandsebastin - Can you pls. explain how did u conclude from (1) that "10 are odd and all are positive integers."
I was thinking on the lines that all 20 can be also even ?Hence we cannot say for sure from (1) that "10 are odd and all are positive integers." Am I missing something ?
I was thinking on the lines that all 20 can be also even ?Hence we cannot say for sure from (1) that "10 are odd and all are positive integers." Am I missing something ?
