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Need help in framing equations for this question.

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Intern
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Status: Aiming for 750+
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Need help in framing equations for this question. [#permalink] New post 29 Jan 2014, 11:18
I came across this question -

In preparation for a trip to New York, Xavier made two identical ATM withdrawals, and Yoni made one. Together, they withdrew exactly enough for each to contribute $60 to the travel fund. How much money did Xavier withdraw in his first transaction?

I need help in translating this problem to equations. This is how I have done so far:

Let Xavier's 1st and 2nd transactions be x1 and x2.
He made identical transactions so x1 = x2
Let Yoni's single transaction be y1.

I do not understand what the statement "Together, they withdrew exactly enough for each to contribute $60 to the travel fund." is trying to say.

Please explain it in simple English and then with an equation for it too.

Thank you!
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Concentration: Finance, Statistics
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Re: Need help in framing equations for this question. [#permalink] New post 29 Jan 2014, 11:33
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Each of them (Xavier and Yoni) withdrew a total amount of $60.

So, Xavier's withdrawal pattern was $30 -> $30 (Two identical transactions). And Yoni withdrew $60 in a single transaction as previously stated.

The end result is that, Xavier and Yoni, each added $60 to the travel fund.
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Re: Need help in framing equations for this question. [#permalink] New post 29 Jan 2014, 16:35
flower07 wrote:
I came across this question -

In preparation for a trip to New York, Xavier made two identical ATM withdrawals, and Yoni made one. Together, they withdrew exactly enough for each to contribute $60 to the travel fund. How much money did Xavier withdraw in his first transaction?

I need help in translating this problem to equations. This is how I have done so far:

Let Xavier's 1st and 2nd transactions be x1 and x2.
He made identical transactions so x1 = x2
Let Yoni's single transaction be y1.

I do not understand what the statement "Together, they withdrew exactly enough for each to contribute $60 to the travel fund." is trying to say.

Please explain it in simple English and then with an equation for it too.

Thank you!


Never ever ever use x's and y's on the GMAT exam unless you're into the later 600 and early 700 question range. You just don't need variables to help you solve most of this stuff. You will confuse yourself to no end
Intern
Intern
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Status: Aiming for 750+
Joined: 16 Oct 2013
Posts: 20
GMAT Date: 05-05-2014
Followers: 0

Kudos [?]: 9 [0], given: 15

Re: Need help in framing equations for this question. [#permalink] New post 30 Jan 2014, 00:59
Abdul29 wrote:
Each of them (Xavier and Yoni) withdrew a total amount of $60.

So, Xavier's withdrawal pattern was $30 -> $30 (Two identical transactions). And Yoni withdrew $60 in a single transaction as previously stated.

The end result is that, Xavier and Yoni, each added $60 to the travel fund.


So that means,

X1+X2+Y=30+30+60
=> 2x+y = 120

Okay, thank you!
Re: Need help in framing equations for this question.   [#permalink] 30 Jan 2014, 00:59
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