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# One dose of secret formula is made from 1/6 ounce of Substance X and

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Math Expert
Joined: 02 Sep 2009
Posts: 58464
One dose of secret formula is made from 1/6 ounce of Substance X and  [#permalink]

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30 Aug 2018, 00:35
00:00

Difficulty:

15% (low)

Question Stats:

79% (01:24) correct 21% (02:38) wrong based on 79 sessions

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One dose of secret formula is made from $$\frac{1}{6}$$ ounce of Substance X and $$\frac{2}{3}$$ounce of Substance Z. How many doses are in a 30-ounce vial of secret formula?

(A) 20
(B) 24
(C) 30
(D) 36
(E) 45

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Re: One dose of secret formula is made from 1/6 ounce of Substance X and  [#permalink]

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30 Aug 2018, 00:44
Volume of 1 dose is = 1/6 + 2/3 = 5/6 ounce
No. of doses in 30 ounce = 30/(5/6) = 36.

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Joined: 24 Mar 2018
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Re: One dose of secret formula is made from 1/6 ounce of Substance X and  [#permalink]

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30 Aug 2018, 01:14
D?

weight of one dose is 5/6 ounce.
So, 30 ounce contain 30*6/5 dozes.
Re: One dose of secret formula is made from 1/6 ounce of Substance X and   [#permalink] 30 Aug 2018, 01:14
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