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30 Jun 2022, 19:15
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A
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Difficulty:
45%
(medium)
Question Stats:
56% (01:40) correct
44%
(01:52)
wrong
based on 18
sessions
History
Date
Time
Result
Not Attempted Yet
[What is the value of m]a – b =[/m] ?
(1) \(a + 3a\) is \(4\) less than \(b + 3b\).
(2) \(a + 3b\) is two times more than \(b + 3a\)
(1) \(a + 3a\) is \(4\) less than \(b + 3b\).
(2) \(a + 3b\) is two times more than \(b + 3a\)
30 Jun 2022, 20:57
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Bunuel
ThatDudeKnows
I got C as S1 & S2 both alone are insufficient but together sufficient.
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30 Jun 2022, 21:13
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Bunuel
Iotaa
Statement (1) alone:
a+3a = b+3b-4
4a = 4b-4
a = b-1
a-b = -1
Does statement (1) alone give us enough information to find a-b? Yes. AD.
Statement (2) alone (it's not clear whether "two times more than" means 2x what follows or 3x what follows, but it doesn't change the verdict):
a+3b = 3b+9a
a = 8a
a = 0
Does statement (2) alone give us enough information to find a-b? No. A.
Answer choice A.
