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# The value of 30 oobers equals the value of 12 darbles,

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The value of 30 oobers equals the value of 12 darbles, [#permalink]  21 Aug 2017, 12:24
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100% (01:17) correct 0% (00:00) wrong based on 6 sessions

The value of 30 oobers equals the value of 12 darbles, and the value of 5 muxes equals the value of 20 oobers. What is the ratio of the value of 2 muxes to that of 1 darble?

[Reveal] Spoiler: OA
$$\frac{16}{5}$$

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Re: The value of 30 oobers equals the value of 12 darbles, [#permalink]  25 Sep 2017, 05:12
So, we have that
30o=12d
5m=20o

Since we are asked to find the ratio between 2m and 1d, I would find them in function of o so that it simplifies and we remain with our ratio. Thus, d=30/12o=15/6o and m=4o so that 2m=8o.
Then the ratio becomes 8o/(15/6)o = 8*6/15 = 8*2/5 = 16/5!
Re: The value of 30 oobers equals the value of 12 darbles,   [#permalink] 25 Sep 2017, 05:12
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