A tourist has travelers checks in $20 and$100 : DS Archive
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# A tourist has travelers checks in $20 and$100

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Manager
Joined: 18 Sep 2004
Posts: 154
Location: Dallas, TX
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A tourist has travelers checks in $20 and$100 [#permalink]

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05 Nov 2004, 16:26
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A tourist has travelersâ€™ checks in $20 and$100 denominations. How many $20 checks are there? (1) If half of the$20 checks is spent, the
remaining amount is $520. (2) The total value of the checks is$740.
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Joined: 15 Dec 2003
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[#permalink]

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05 Nov 2004, 17:07
C it is
1) 20x/2 + 100y = 520
2 unknowns, insuff.

2) 20x + 100y = 740
2 unknowns, insuff.

Both are sufficient.
_________________

Best Regards,

Paul

[#permalink] 05 Nov 2004, 17:07
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# A tourist has travelers checks in $20 and$100

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