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Month Average price per dozen April $1.26 May $1.20 June

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VP
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Month Average price per dozen April $1.26 May $1.20 June [#permalink] New post 22 Aug 2007, 15:30
Month Average price per dozen
April $1.26
May $1.20
June $1.08

The table above shows the average (arithmetic mean) price per dozen of the large grade A eggs sold in a certain store during three successive months. If as many dozen were sold in April as in May, and twice as many were sold in June as in April, what was the average price per dozen of the eggs sold over the three-month period?

Please explain
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Re: average price [#permalink] New post 22 Aug 2007, 16:23
Ravshonbek wrote:
Month Average price per dozen
April $1.26
May $1.20
June $1.08

The table above shows the average (arithmetic mean) price per dozen of the large grade A eggs sold in a certain store during three successive months. If as many dozen were sold in April as in May, and twice as many were sold in June as in April, what was the average price per dozen of the eggs sold over the three-month period?

Please explain


Set:
x = Number of dozen sold in April
x = Number of dozen sold in May
2x = Number of dozen sold in June

Want to find: Total Money / Total Number
Total Money = 1.26x + 1.2x + 1.08*2*x = 4.62x
Total Number = x+x+2x = 4x

Ans = 4.62x / 4x = 1.155
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 [#permalink] New post 23 Aug 2007, 17:24
I come up with 1.14 as the average price..


April $1.26 x


May $1.2 x

June 1.08 2x


sum = 4.56x/ 4x = 1.14
  [#permalink] 23 Aug 2007, 17:24
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Month Average price per dozen April $1.26 May $1.20 June

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