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median amount student earned

Expert replies
by nailyad » Sat Dec 26, 2009 5:38 pm
Amount earned per day 96 84 80 70 48

Number of days 4 7 4 3 2

Student worked for 20 days. What is the median amount of money student earned per day for the 20 days?


My solution was: since median is asked, I arranged the amounts from least and then picked up 80.

The correct answer is 84.

Can I get some help here?
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Source: — Data Sufficiency |

by Stuart@KaplanGMAT » Sat Dec 26, 2009 6:43 pm
nailyad wrote:
Can I get some help here?
Can get more help if you post the full question and answer choices in the correct forum!
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by linkinpark » Sat Dec 26, 2009 11:46 pm
agree with Stuart, please post questions properly

anyway from info you've given the amounts will be like following

48,48,70,70,70,80,80,80,80,84,84,84,84,84,84,84,96,96,96,96

so 10, 11 term are 84 each and their average = 84 because number of terms is even
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