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# ps -average

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Intern
Joined: 07 Sep 2008
Posts: 25

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06 Oct 2008, 15:23
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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 2/3 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?

Director
Joined: 23 May 2008
Posts: 799

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06 Oct 2008, 16:16
A:M:J =1:1.5:2

1(1.26) + 1(1.20) + 2(1.08)= 5.22

1+1.5+2=4.5

5.22/4.5=1.16
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Joined: 05 Jul 2006
Posts: 1747

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07 Oct 2008, 03:14
1
KUDOS
andreasonlinegr 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 2/3 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?

Average = total price / units sold

june total sales = 12x , April = 6x , May = 9x

total sales June = 1.08*12x = 12.96x
total sales april = 1.26*6x = 7.56x
total sales May = 9x*1.2 = 10.8x

12.96x+7.56x+10.8x / 27x = 1.16
Re: ps -average   [#permalink] 07 Oct 2008, 03:14
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