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A sporting goods store received a shipment of baseball glove

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A sporting goods store received a shipment of baseball glove [#permalink] New post 03 May 2013, 02:08
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A sporting goods store received a shipment of baseball gloves that included 5 brown gloves for every 6 black gloves. Did the store receive at least 250 gloves in the shipment?

(1) 44% of the left-handed gloves in the shipment were black.

(2) The shipment included 84 black, right-handed gloves.
[Reveal] Spoiler: OA

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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 03 May 2013, 04:01
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A sporting goods store received a shipment of baseball gloves that included 5 brown gloves for every 6 black gloves. Did the store receive at least 250 gloves in the shipment?

Given: Black:Brown=6x:5x, so the # of black gloves is a multiple of 6 and # of brown gloves is a multiple of 5.

(1) 44% of the left-handed gloves in the shipment were black --> 44%=11/25 of left-handed gloves are black, thus the # of left-handed gloves is a multiple of 25. Not sufficient.

(2) The shipment included 84 black, right-handed gloves. Also not sufficient.

(1)+(2) We have the following matrix:
Attachment:
(1)+(2).png
(1)+(2).png [ 4.44 KiB | Viewed 1531 times ]
Notice that we have that 84+\frac{11Y}{25}=6X.

Now, since both 84 and 6x are multiples of 6, then \frac{11Y}{25} must also be a multiple of 6, which means that Y must be both multiple of 25 and 6, or a multiple of 150 (LCM of 25 and 6). Thus the least value of Y is 150. In this case 84+\frac{11*150}{25}=150=6x --> X_{min}=25 --> Total=6X+5X=11x=275>250. Sufficient.

Answer: C.

Hope it's clear.
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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 03 May 2013, 04:10
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1) Not sufficient.As we don't know anything on right handed gloves.
2) Not sufficient.

Combining both :

Let the total no of gloves be 200x. 100x for left hand and 100x for right hand.

For right hand: black gloves = 84
brown gloves = 100x - 84.

For left hand : black gloves = 44x
brown gloves = 100x - 44x = 56x

So total no of black gloves = 84 + 44x
total no of brown gloves = 100x - 84 + 56x = 156x - 84.

Then, (84 + 44x)/(156x - 84) = 6/5
=> x = 924/716
=> 200x = 258

Ans : Option C.

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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 03 May 2013, 04:15
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subhendu009 wrote:
1) Not sufficient.As we don't know anything on right handed gloves.
2) Not sufficient.

Combining both :

Let the total no of gloves be 200x. 100x for left hand and 100x for right hand.

For right hand: black gloves = 84
brown gloves = 100x - 84.

For left hand : black gloves = 44x
brown gloves = 100x - 44x = 56x

So total no of black gloves = 84 + 44x
total no of brown gloves = 100x - 84 + 56x = 156x - 84.

Then, (84 + 44x)/(156x - 84) = 6/5
=> x = 924/716
=> 200x = 258

Ans : Option C.

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That's not correct.

First of all, we cannot get the exact number of the gloves in the shipment. Next, the # of gloves MUST be a multiple of 11, so the # of gloves cannot be 258.

Check here: a-sporting-goods-store-received-a-shipment-of-baseball-glove-152090.html#p1220135 The least # of gloves is 275.
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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 03 May 2013, 06:40
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thelosthippie wrote:
A sporting goods store received a shipment of baseball gloves that included 5 brown gloves for every 6 black gloves. Did the store receive at least 250 gloves in the shipment?

(1) 44% of the left-handed gloves in the shipment were black.

(2) The shipment included 84 black, right-handed gloves.


Bunuel,I feel this question is a bit out of place for GMAT, ONLY because it requires one to know that baseball glvoes don't come in pairs.Your take?
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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 03 May 2013, 06:55
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vinaymimani wrote:
thelosthippie wrote:
A sporting goods store received a shipment of baseball gloves that included 5 brown gloves for every 6 black gloves. Did the store receive at least 250 gloves in the shipment?

(1) 44% of the left-handed gloves in the shipment were black.

(2) The shipment included 84 black, right-handed gloves.


Bunuel,I feel this question is a bit out of place for GMAT, ONLY because it requires one to know that baseball glvoes don't come in pairs.Your take?


Yes, in baseball players wear only one glove, but not sure that this is a common knowledge, thus real GMAT question would probably make note about that.
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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 14 Jun 2014, 11:14
Total Gloves have to be a multiple of 10k + 12k..including right + left for both the colors

Now A says it is a multiple of 25..so the least possible number where 22 and 25 meet (LCM) is above 250..A is suff

B is also suff---> 168 Black gloves + 168*5/6 = some number greater than or less than 250...suff

D should be the answer :shock:
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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 14 Jun 2014, 11:33
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JusTLucK04 wrote:
Total Gloves have to be a multiple of 10k + 12k..including right + left for both the colors

Now A says it is a multiple of 25..so the least possible number where 22 and 25 meet (LCM) is above 250..A is suff

B is also suff---> 168 Black gloves + 168*5/6 = some number greater than or less than 250...suff

D should be the answer :shock:


From stem: the total # of gloves is a multiple of 11, not necessarily of 22.

From (1): the # of left-handed gloves is a multiple of 25, not the total # of gloves.

From (2): the shipment included 84 black, right-handed gloves. How does it follow from this that there are 168 black gloves?

Complete solution is here: a-sporting-goods-store-received-a-shipment-of-baseball-glove-152090.html#p1220135

Hope it helps.
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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 14 Jun 2014, 11:50
Bunuel wrote:
JusTLucK04 wrote:
Total Gloves have to be a multiple of 10k + 12k..including right + left for both the colors

Now A says it is a multiple of 25..so the least possible number where 22 and 25 meet (LCM) is above 250..A is suff

B is also suff---> 168 Black gloves + 168*5/6 = some number greater than or less than 250...suff

D should be the answer :shock:


From stem: the total # of gloves is a multiple of 11, not necessarily of 22.

From (1): the # of left-handed gloves is a multiple of 25, not the total # of gloves.

From (2): the shipment included 84 black, right-handed gloves. How does it follow from this that there are 168 black gloves?

Complete solution is here: a-sporting-goods-store-received-a-shipment-of-baseball-glove-152090.html#p1220135

Hope it helps.


I just went through the complete thread...I didn't have any clue about baseball stuff..
So there cant be 5 brown and 6 black gloves..as they have to be in pairs(My assumption)..Hence I deduced the 10 -12 logic
Same assumption for 2nd statement and you should get a D..
Not a GMAT type question..No body outside US follows baseball(I believe)
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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 30 Jun 2014, 10:03
Hi Bunuel,

please correct me ....

A is not sufficient since we don't know the exact number of the total left hand gloves.

for B if we know there are 84 right hand gloves, then there will be equivalent number of left hand side gloves.
hence the total will be 168. Also, its given the ration of Brown to black 5:6 ... hence 140 another gloves .... this makes the total more than 250 .. sufficient .

For me answer should be B ... Can you please help me to understand this.
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Re: A sporting goods store received a shipment of baseball glove [#permalink] New post 30 Jun 2014, 10:38
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GmatDestroyer2013 wrote:
Hi Bunuel,

please correct me ....

A is not sufficient since we don't know the exact number of the total left hand gloves.

for B if we know there are 84 right hand gloves, then there will be equivalent number of left hand side gloves.
hence the total will be 168. Also, its given the ration of Brown to black 5:6 ... hence 140 another gloves .... this makes the total more than 250 .. sufficient .

For me answer should be B ... Can you please help me to understand this.


Please read whole thread before posting a question. Chances are that your question has already been answered. Check here: a-sporting-goods-store-received-a-shipment-of-baseball-glove-152090.html#p1220260

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Re: A sporting goods store received a shipment of baseball glove   [#permalink] 30 Jun 2014, 10:38
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