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# The table above shows the average (arithmetic mean) price pe

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Senior Manager
Joined: 16 Jan 2009
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The table above shows the average (arithmetic mean) price pe  [#permalink]

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Updated on: 11 Sep 2013, 12:46
1
2
00:00

Difficulty:

65% (hard)

Question Stats:

63% (02:00) correct 37% (02:52) wrong based on 128 sessions

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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?

(A) \$1.08
(B) \$1.10
(C) \$1.14
(D) \$1.16
(E) \$1.18

OPEN DISCUSSION OF THIS QUESTION IS HERE: the-table-above-shows-the-average-arithmetic-mean-price-pe-140568.html

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Lahoosaher

Originally posted by lahoosaher on 30 Jun 2009, 23:40.
Last edited by Bunuel on 11 Sep 2013, 12:46, edited 1 time in total.
Renamed the topic and edited the question.
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Joined: 23 Jun 2009
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30 Jun 2009, 23:53
1
Say eggs sold in april is x, so may becomes x and june becomes 2x.
So it becomes an easy equation
(x*1,26+x*1,20+2x*1,08)/(x+x+2x)=1,155
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Joined: 27 Jun 2008
Posts: 138

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22 Jul 2009, 01:34
1.26+1.2+2X1.08 /4 = 1.155 equal 1.16 Is it D
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Joined: 14 Nov 2008
Posts: 181
Schools: Stanford...Wait, I will come!!!

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22 Jul 2009, 06:39
amolsk11 wrote:
Month:Average Price per Dozen Number Sold
April: \$1.26 n
May: \$1.20 n
June: \$1.08 2n

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

(1.26+1.20+2.16)/4 = 1.16
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Joined: 06 Sep 2013
Posts: 1801
Concentration: Finance

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11 Sep 2013, 12:36
1
1

One approach I found useful to solve this problem is to use Smart Numbers for the weights. For this particular case, I used 100 eggs for both April and May and 200 eggs for June.

Then I multiplied 1.26 * (100) + 1.20 (100) + 1.08 (200) = 462

Now the answer should be 462/400 (100+100+200) =

Looking at the answer choices first to see how precise do we have to approximate. Answers are not that far apart.
462/400 = 231/200

This is approximataly 230/200 = 1.15

We are slightly underestimating (231 vs. 230) so answer should be slightly higher than 1.15
Only option close to 1.15 is (d) = 1.16
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Joined: 02 Sep 2009
Posts: 49430
Re: The table above shows the average (arithmetic mean) price pe  [#permalink]

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11 Sep 2013, 12:46
OPEN DISCUSSION OF THIS QUESTION IS HERE: the-table-above-shows-the-average-arithmetic-mean-price-pe-140568.html
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Posts: 8176
Re: The table above shows the average (arithmetic mean) price pe  [#permalink]

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15 Jul 2018, 21:23
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: The table above shows the average (arithmetic mean) price pe &nbs [#permalink] 15 Jul 2018, 21:23
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# The table above shows the average (arithmetic mean) price pe

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