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Tourists purchased a total of 30 traveler's checks in $50 and $100 denominations. The total worth of the traveler's chec

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Tourists purchased a total of 30 traveler's checks in $50 and $100 denominations. The total worth of the traveler's chec

by VJesus12 » Fri Mar 19, 2021 6:34 am

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Tourists purchased a total of 30 traveler's checks in $50 and $100 denominations. The total worth of the traveler's checks is $1800. How many checks of $50 denominations can he spend so that the average amount (arithmetic mean) of the remaining traveler's checks is $80?

A. 4
B. 12
C. 15
D. 20
E. 24

Answer: D

Source: GMAT Paper Tests
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