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Given a : b is 6 : 5 and a : c is 15 : 11, what is the ratio a : b : c

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Math Expert
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V
Joined: 02 Sep 2009
Posts: 61385
Given a : b is 6 : 5 and a : c is 15 : 11, what is the ratio a : b : c  [#permalink]

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New post 16 Jan 2020, 23:50
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

73% (00:49) correct 27% (01:03) wrong based on 10 sessions

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e-GMAT Representative
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Joined: 04 Jan 2015
Posts: 3250
Re: Given a : b is 6 : 5 and a : c is 15 : 11, what is the ratio a : b : c  [#permalink]

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New post 17 Jan 2020, 11:05

Solution



Given
In this question, we are given that
    • a: b = 6: 5
    • a: c = 15: 11

To find
We need to determine
    • a: b: c =?

Approach and Working out
We can write the ratios as a: b = 6: 5 = 30: 25 and a: c = 15: 11 = 30: 22
    • Hence, a: b: c = 30: 25: 22

Thus, option E is the correct answer.

Correct Answer: Option E
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Re: Given a : b is 6 : 5 and a : c is 15 : 11, what is the ratio a : b : c   [#permalink] 17 Jan 2020, 11:05
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Given a : b is 6 : 5 and a : c is 15 : 11, what is the ratio a : b : c

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