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Events & Promotions

Events & Promotions in June
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Month Average Priceper Dozen April $1.26 May $1.20 June

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Director
Director
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Joined: 20 Sep 2006
Posts: 653

Kudos [?]: 135 [0], given: 7

Month Average Priceper Dozen April $1.26 May $1.20 June [#permalink]

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New post 29 Jul 2008, 20:27
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Month Average Priceper Dozen
April $1.26
May $1.20
June $1.08


19. 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?
(A) $1.08
(B) $1.10
(C) $1.14
(D) $1.16
(E) $1.18


PS: Sorry for posting it again (I missed some data last time). The reason I am posting this is because looks like we are missing sth in ans choice and I dont have the OE

Kudos [?]: 135 [0], given: 7

Director
Director
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Joined: 20 Sep 2006
Posts: 653

Kudos [?]: 135 [0], given: 7

Re: Good - airthmatic mean problem [#permalink]

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New post 29 Jul 2008, 20:33
Here's how I was solving htis:

# of eggs sold in may = x
april = (2/3)x
June = 2(2/3)x

Av = 1.20 + 1.26(2/3) + 1.08(4/3) / [1 + 2/3 + 4/3]
= 11.44/9 = 1.28

Kudos [?]: 135 [0], given: 7

SVP
SVP
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Joined: 28 Dec 2005
Posts: 1545

Kudos [?]: 179 [0], given: 2

Re: Good - airthmatic mean problem [#permalink]

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New post 29 Jul 2008, 20:42
similar approach, but i end up with answer D, 1.16

April=2/3*May
June=2*April=4/3*May

Average price = total value of sales / total sales = [May*(1.26*(2/3) + 1.2 + (1.08*(4/3))] / 3*May

Kudos [?]: 179 [0], given: 2

Manager
Manager
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Joined: 03 Jun 2008
Posts: 133

Kudos [?]: 45 [0], given: 0

Schools: ISB, Tuck, Michigan (Ross), Darden, MBS
Re: Good - airthmatic mean problem [#permalink]

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New post 29 Jul 2008, 21:15
My ans in 1.16

Let 3 dz eggs be sold in May

April = 2/3*3 = 2 dz eggs

June = 4 dz

Therefore avg price = (2*1.26 + 3*1.2 + 4*1.08)/ 9 = 1.16
_________________

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'It's not the ride, it's the rider'

Kudos [?]: 45 [0], given: 0

Re: Good - airthmatic mean problem   [#permalink] 29 Jul 2008, 21:15
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Month Average Priceper Dozen April $1.26 May $1.20 June

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