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19 Nov 2018, 00:17
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
25% (01:14) correct
75%
(00:52)
wrong
based on 8
sessions
History
Date
Time
Result
Not Attempted Yet
What is the value of t ?
(1) 2t − 1 ≥ 5
(2) 3t − 2 ≤ 11
(1) 2t − 1 ≥ 5
(2) 3t − 2 ≤ 11
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19 Nov 2018, 01:26
Kudos
Bookmarks
(1) 2t − 1 ≥ 5
=> 2t ≥ 6
=> t ≥ 3
=> t can be 3,4,5,150...
=> Insufficient
(2) 3t − 2 ≤ 11
=> 3t ≤ 13
=> t ≤ 13/3 => t ≤ 4 1/3
=> t can be 1,2,3,4,-260...
=> Insufficient
Combining we see that t ≥ 3 and t ≤ 4 1/3, so t can be 3,3.5,4,4.1...
=> The correct answer is E
=> 2t ≥ 6
=> t ≥ 3
=> t can be 3,4,5,150...
=> Insufficient
(2) 3t − 2 ≤ 11
=> 3t ≤ 13
=> t ≤ 13/3 => t ≤ 4 1/3
=> t can be 1,2,3,4,-260...
=> Insufficient
Combining we see that t ≥ 3 and t ≤ 4 1/3, so t can be 3,3.5,4,4.1...
=> The correct answer is E
Archit3110
Major Poster
19 Nov 2018, 01:27
Kudos
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Bunuel
from 1:
2t>=6
t>=3 not sufficient
as t can be any value
frm 2:
3t<=13
t<=4.33 not sufficient
from 1& 2, 3>=t<=4.33
t can have different values viz. 3.01, 3.2,3.33 so on.. IMO E should be correct..
