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#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here. # a:b = 3:1, a:d = 15:2, c:d = 7:9, c:d = 10:3  Question banks Downloads My Bookmarks Reviews Important topics
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Intern Joined: 08 Oct 2017
Posts: 2
Followers: 0

Kudos [?]: 1 , given: 7

a:b = 3:1, a:d = 15:2, c:d = 7:9, c:d = 10:3 [#permalink] 00:00

Question Stats: 0% (00:00) correct 100% (02:26) wrong based on 2 sessions
a:b = 3:1, a:d = 15:2, c:e = 7:9, c:d = 10:3

If e = 60, what is the value of b?

A 20
B 35
C 70
d 180
E The value cannot be determined from the information given
[Reveal] Spoiler: OA

Last edited by cicilvikas on 13 Oct 2017, 10:01, edited 1 time in total. Director Joined: 20 Apr 2016
Posts: 948
WE: Engineering (Energy and Utilities)
Followers: 13

Kudos [?]: 709  , given: 152

Re: a:b = 3:1, a:d = 15:2, c:d = 7:9, c:d = 10:3 [#permalink]
1
KUDOS
cicilvikas wrote:
a:b = 3:1, a:d = 15:2, c:d = 7:9, c:d = 10:3

Could you check the question -

c:d = 7:9 , c:d = 10:3
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Rules for Posting https://greprepclub.com/forum/rules-for ... -1083.html Intern Joined: 08 Oct 2017
Posts: 2
Followers: 0

Kudos [?]: 1  , given: 7

Re: a:b = 3:1, a:d = 15:2, c:d = 7:9, c:d = 10:3 [#permalink]
1
KUDOS
Apologies for the typo. It's fixed now Director Joined: 20 Apr 2016
Posts: 948
WE: Engineering (Energy and Utilities)
Followers: 13

Kudos [?]: 709  , given: 152

Re: a:b = 3:1, a:d = 15:2, c:d = 7:9, c:d = 10:3 [#permalink]
2
KUDOS
cicilvikas wrote:
Apologies for the typo. It's fixed now

No worries,

Now to the ques
we can have

$$a=\frac{(15d)}{2}$$

$$b =\frac{(5d)}{2}$$(since a = 3b)

$$d= \frac{(3c)}{10}$$

$$c = \frac{(7e)}{(9)}$$
=$$\frac{(7*60)}{(9)}$$

Now $$d = \frac{(3*7*60)}{(10*9)} = 14$$

therefore $$b= \frac{(5*14)}{2} = 35$$
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Rules for Posting https://greprepclub.com/forum/rules-for ... -1083.html Re: a:b = 3:1, a:d = 15:2, c:d = 7:9, c:d = 10:3   [#permalink] 13 Oct 2017, 10:14
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