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10 Apr 2018, 06:53
Kudos
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
87% (01:00) correct
13%
(00:42)
wrong
based on 73
sessions
History
Date
Time
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Not Attempted Yet
What is the ratio of r to s?
(1) r = 3(s + 1)
(2) The ratio of 1.2r to 3.6s is 3 to 2.
(1) r = 3(s + 1)
(2) The ratio of 1.2r to 3.6s is 3 to 2.
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
10 Apr 2018, 07:11
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Bunuel
we are looking for the ratio of r to s. In order to find out the ratio we have to know the value of r and s.
statement 1: r=3(s+1). not sufficient as we don't know the value of s here.
statement 2: 1.2r / 3.6 s = 3/2
12r/36s=3/2
r/s=9:2
so, the correct answer will be B.
10 Apr 2018, 07:33
Kudos
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(1) r = 3(s + 1)
We cant find the ration here, because it does depend on the actual value of r or s.
For example if s = 1, r = 6, hence r:s = 6
whereas, if s= 100, r = 303 , ratio r:s = 303:100
Hence insufficient.
(2) The ratio of 1.2r to 3.6s is 3 to 2.
\(1.2r/3.6s = 3/2\)
\(r/s= 9/2\) . Suffcient.
Answer B
We cant find the ration here, because it does depend on the actual value of r or s.
For example if s = 1, r = 6, hence r:s = 6
whereas, if s= 100, r = 303 , ratio r:s = 303:100
Hence insufficient.
(2) The ratio of 1.2r to 3.6s is 3 to 2.
\(1.2r/3.6s = 3/2\)
\(r/s= 9/2\) . Suffcient.
Answer B
