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# How many milliliters of Chemical X were added to the Chemical Y in a

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Math Expert
Joined: 02 Sep 2009
Posts: 53831
How many milliliters of Chemical X were added to the Chemical Y in a  [#permalink]

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17 Oct 2018, 00:27
00:00

Difficulty:

5% (low)

Question Stats:

96% (00:34) correct 4% (00:00) wrong based on 31 sessions

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How many milliliters of Chemical X were added to the Chemical Y in a vessel?

(1) The amount of Chemical X that was added was 2/3 times the amount of Chemical Y in the vessel.

(2) There was 60 milliliters of Chemical Y in the vessel

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Re: How many milliliters of Chemical X were added to the Chemical Y in a  [#permalink]

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19 Oct 2018, 06:54
Bunuel wrote:
How many milliliters of Chemical X were added to the Chemical Y in a vessel?

(1) The amount of Chemical X that was added was 2/3 times the amount of Chemical Y in the vessel.

(2) There was 60 milliliters of Chemical Y in the vessel

Question: Quantity of Chemical X = ?

Statement 1: The amount of Chemical X that was added was 2/3 times the amount of Chemical Y in the vessel.

This tells us the percentage of Chemical X but no absolute quantities are known hence
NOT SUFFICIENT

Statement 2: There was 60 milliliters of Chemical Y in the vessel

Quantity of Chemical X can NOT be determined as the relationship between quantities of X and Y is unknown hence
NOT SUFFICIENT

Combining the two statements

X = (2/3)*Y and Y = 60
i.e. X = 40 millimeters

SUFFICIENT

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Re: How many milliliters of Chemical X were added to the Chemical Y in a  [#permalink]

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20 Oct 2018, 05:36
X=?

(1) x=$$\frac{2}{3}$$Y. [No inf about Y]

(2) Y=60 [No link between X and Y]

Put (2) in (1)
We can find the value of X

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Re: How many milliliters of Chemical X were added to the Chemical Y in a   [#permalink] 20 Oct 2018, 05:36
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