infinit series

This topic has expert replies
Junior | Next Rank: 30 Posts
Posts: 19
Joined: Sat Feb 07, 2009 9:00 am
Thanked: 1 times

infinit series

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
Source: — Data Sufficiency |

User avatar
Master | Next Rank: 500 Posts
Posts: 248
Joined: Mon Aug 11, 2008 9:51 am
Thanked: 13 times

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

Junior | Next Rank: 30 Posts
Posts: 19
Joined: Sat Feb 07, 2009 9:00 am
Thanked: 1 times

by AJ2009 » Mon Feb 16, 2009 11:18 am
yes it is.
thanks