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Junior | Next Rank: 30 Posts
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by AJ2009 » Mon Feb 16, 2009 10:45 am
In an infinite sequence of positive numbers, no number is repeated. Are there infinitely many numbers in the sequence that are greater than 4 ?

(1) There are infinitely many numbers in the sequence that are less than 3.

(2) There are infinitely many numbers in the sequence that are greater than 3/4
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by earth@work » Mon Feb 16, 2009 11:05 am
Is the OA :E

(1) There are infinitely many numbers in the sequence that are less than 3....this tells the seq has infinite nos. less than 3 but nothing whether series extends beyond 3.... insuff
(2) There are infinitely many numbers in the sequence that are greater than 3/4...... doesn't say anything about the upper limit...it might be more than 4 or less than 4 .....insuff
(1) & (2) together ...insuff
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Junior | Next Rank: 30 Posts
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by AJ2009 » Mon Feb 16, 2009 11:18 am
yes it is.
thanks
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