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Five friends play blackjack in Las Vegas and lose an average of $100 each. If the losses of two of the friends total $38

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Five friends play blackjack in Las Vegas and lose an average of $100 each. If the losses of two of the friends total $38

by VJesus12 » Wed Aug 19, 2020 6:51 am

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Five friends play blackjack in Las Vegas and lose an average of $100 each. If the losses of two of the friends total $380, what is the average loss of the other friends?

A. $40
B. $60
C. $100
D. $120
E. $1,900

Answer: A

Source: Princeton Review
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Re: Five friends play blackjack in Las Vegas and lose an average of $100 each. If the losses of two of the friends total

by Scott@TargetTestPrep » Sat Aug 22, 2020 10:49 am
VJesus12 wrote: ↑
Wed Aug 19, 2020 6:51 am
 Five friends play blackjack in Las Vegas and lose an average of $100 each. If the losses of two of the friends total $380, what is the average loss of the other friends?

A. $40
B. $60
C. $100
D. $120
E. $1,900

Answer: A

Solution:

The total loss of all the friends is 500 dollars. Since two friends lost 380 dollars, the remaining 3 friends lost a total of 120 dollars, or an average of 120/3 = 40 dollars.

Answer: A

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