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Helium
Joined: 08 Jun 2013
Last visit: 01 Jun 2020
Posts: 452
Own Kudos:
Given Kudos: 118
Location: France
Schools: INSEAD Jan '19
GMAT 1: 200 Q1 V1
GPA: 3.82
WE:Consulting (Other)
22 Sep 2018, 20:01
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
54% (01:08) correct
46%
(00:49)
wrong
based on 83
sessions
History
Date
Time
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Not Attempted Yet
ArjunJag1328
Joined: 24 Dec 2017
Last visit: 12 Jan 2025
Posts: 135
Own Kudos:
Given Kudos: 48
Location: India
Concentration: Strategy, Real Estate
Schools: Johnson '21
22 Sep 2018, 21:51
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Is S<T?
St 1: R =T/2
=>2R=T
We have no information about S. Hence proved insufficient.AD
St2: S=R/2
=>2S=R
We have no information about T. Hence proved insufficient.BCE
St 1 & St 2: 2R=T & 2S=R
Case 1: Let R=3
=>2x3=6(T=6) & 2x1.5=3(S=1.5)
=>T=6 & S=1.5. In this case, S<T
Case 2: Let R=-4
=>2x-4=-8(T=-8) & 2x-2=-4(S=-2)
=>T=-8 & S=-2. In this case. S>T
Hence C is also insufficient.
Answer is E
Thank you
Arjun
St 1: R =T/2
=>2R=T
We have no information about S. Hence proved insufficient.
St2: S=R/2
=>2S=R
We have no information about T. Hence proved insufficient.
St 1 & St 2: 2R=T & 2S=R
Case 1: Let R=3
=>2x3=6(T=6) & 2x1.5=3(S=1.5)
=>T=6 & S=1.5. In this case, S<T
Case 2: Let R=-4
=>2x-4=-8(T=-8) & 2x-2=-4(S=-2)
=>T=-8 & S=-2. In this case. S>T
Hence C is also insufficient.
Answer is E
Thank you
Arjun
23 Sep 2018, 03:03
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Solution
To find:
- • Whether S < T
Analysing Statement 1
As per the information given in statement 1, \(R = \frac{T}{2}\)
- • We don’t have any relevant information about S.
Hence, statement 1 is not sufficient.
Analysing Statement 2
As per the information given in statement 2, \(S = \frac{R}{2}\)
- • We don’t have any relevant information about T.
Hence, statement 2 is not sufficient.
Combining Both Statements
We know \(R = \frac{T}{2}\) and \(S = \frac{R}{2}\).
Hence, we can say \(S = \frac{T}{4}\), or, \(T = 4S\).
- • Now, if both S and T are positive integers, then T > S.
• Whereas if both S and T are negative integers, then T < S.
As we can see, we can have multiple possibilities.
Hence, the correct answer is option E.
Answer: E
