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# What is the ratio of r to s? (1) r = 3(s + 1) (2) The ratio of 1.2r t

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Math Expert
Joined: 02 Sep 2009
Posts: 44655
What is the ratio of r to s? (1) r = 3(s + 1) (2) The ratio of 1.2r t [#permalink]

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10 Apr 2018, 06:53
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95% (01:32) correct 5% (00:00) wrong based on 19 sessions

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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.
[Reveal] Spoiler: OA

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Joined: 31 Oct 2013
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Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: What is the ratio of r to s? (1) r = 3(s + 1) (2) The ratio of 1.2r t [#permalink]

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10 Apr 2018, 07:11
Bunuel wrote:
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.

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.
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Re: What is the ratio of r to s? (1) r = 3(s + 1) (2) The ratio of 1.2r t [#permalink]

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10 Apr 2018, 07:33
(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.

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Re: What is the ratio of r to s? (1) r = 3(s + 1) (2) The ratio of 1.2r t   [#permalink] 10 Apr 2018, 07:33
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