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# An office supply store received a shipment of boxes of pencils. How ma

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Math Expert
Joined: 02 Sep 2009
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An office supply store received a shipment of boxes of pencils. How ma  [#permalink]

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15 Nov 2017, 07:38
1
1
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Difficulty:

25% (medium)

Question Stats:

80% (00:58) correct 20% (01:14) wrong based on 66 sessions

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An office supply store received a shipment of boxes of pencils. How many pencils were in the shipment altogether? (1 gross = 12 dozen)

(1) The number of boxes of pencils in the shipment was 6 gross.
(2) There were 3 dozen pencils in each box of pencils in the shipment.

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Re: An office supply store received a shipment of boxes of pencils. How ma  [#permalink]

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15 Nov 2017, 08:17
Bunuel wrote:
An office supply store received a shipment of boxes of pencils. How many pencils were in the shipment altogether? (1 gross = 12 dozen)

(1) The number of boxes of pencils in the shipment was 6 gross.
(2) There were 3 dozen pencils in each box of pencils in the shipment.

The shipment was in boxes and we are asked to find number of pencils. Hence we need total boxes shipped and number of pencils in each box.

Statement 1: number of boxes is given. So we get one condition. but number of pencils in each box is not given. Insufficient

Statement 2: number of pencils in each box is given. but number of boxes is not given. Insufficinet

Combing 1 & 2 we get both our required condition. Sufficinet

Although calculation is not required but number of pencils can be calculated as = 6*12*12*3*12

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Re: An office supply store received a shipment of boxes of pencils. How ma  [#permalink]

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21 Apr 2018, 09:01
i think the answer should be A since the question is stating that there are 12 dozens in 1 gross and that the statement 1 is stating that there are 6 gross in the shipment that means there are 72 dozens and that there are 12 pencils in one dozen and therefore there are 12*72 pencils . So tats sufficient. Where am i going wrong?
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Re: An office supply store received a shipment of boxes of pencils. How ma  [#permalink]

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21 Apr 2018, 18:18
longhaul123 wrote:
i think the answer should be A since the question is stating that there are 12 dozens in 1 gross and that the statement 1 is stating that there are 6 gross in the shipment that means there are 72 dozens and that there are 12 pencils in one dozen and therefore there are 12*72 pencils . So tats sufficient. Where am i going wrong?

Hi longhaul123

1 Gross=12 dozens=144 items is a unit and is a universal truth. even if the question had not given this hint, you can always convert gross into dozens.

Statement 1 provide you the number of boxes but does not provide the information as to how many pencils are there in each box. In the highlighted part you have assumed that each box contain 1 dozen of pencils but this fact is not mentioned in the question stem or in Statement 1.

Rather if you read Statement 2, then it clearly mentions that each box contain 3 dozen pencils and NOT 1 dozen.
Re: An office supply store received a shipment of boxes of pencils. How ma &nbs [#permalink] 21 Apr 2018, 18:18
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