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If a + 3a is 4 less than b + 3b, then a – b =

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Bunuel
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If a + 3a is 4 less than b + 3b, then a – b = [#permalink] New post   Updated on: 07 Jul 2019, 00:20
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A
B
C
D
E

Difficulty:

5% (low)

Question Stats:

85% (01:04) correct 15% (00:58) wrong based on 61 sessions
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If a + 3a is 4 less than b + 3b, then a – b =

(A) –4
(B) –1
(C) 1/5
(D) 1/3
(E) 2

Source: Nova GMAT
Difficulty Level: 600
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B

Originally posted by Bunuel on 09 Apr 2019, 21:54.
Last edited by Sajjad1994 on 07 Jul 2019, 00:20, edited 1 time in total.
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m1033512
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Re: If a + 3a is 4 less than b + 3b, then a – b = [#permalink] New post   09 Apr 2019, 22:07
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from thw given condition,

b+3b -a-3a = 4

rearrange ,

b-a + 3b - 3a = 4

b-a + 3(b-a) = 4

(b-a)(1+3) = 4

b-a = 4/4
b-a = 1
a-b = -1


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NandishSS
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Re: If a + 3a is 4 less than b + 3b, then a – b = [#permalink] New post   09 Apr 2019, 22:11
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Bunuel wrote:
If a + 3a is 4 less than b + 3b, then a – b =

(A) –4
(B) –1
(C) 1/5
(D) 1/3
(E) 2


a + 3a is 4 less than b + 3b ==> 4a=4b-4 ==> 4a-4b = -4==> a-b =-1

Hence B
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sumi747
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Re: If a + 3a is 4 less than b + 3b, then a – b = [#permalink] New post   09 Apr 2019, 22:42
4a=4b-4
a=b-1
a-b=-1
IMO B

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AliSarfraz
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Re: If a + 3a is 4 less than b + 3b, then a – b = [#permalink] New post   15 Sep 2020, 21:34
a+3a=4
4a=4
a=1
b+3b=8
4b=8
b=2
a-b=?
1-2=-1
so ans is -1 :heart :heart :heart :heart :heart
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Re: If a + 3a is 4 less than b + 3b, then a – b = [#permalink]
15 Sep 2020, 21:34
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