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# m05 - 25/37

Author Message
Manager
Joined: 27 Jul 2010
Posts: 197
Location: Prague
Schools: University of Economics Prague
Followers: 1

Kudos [?]: 33 [0], given: 15

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14 Feb 2011, 09:43
I have a question regarding the solution.

OA is 1281

But shouldnt it be 1280?

The 1281 it could be, when the question would ask: how many has he open, to see at least one taffy candy?
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You want somethin', go get it. Period!

Director
Status: -=Given to Fly=-
Joined: 04 Jan 2011
Posts: 834
Location: India
Schools: Haas '18, Kelley '18
GMAT 1: 650 Q44 V37
GMAT 2: 710 Q48 V40
GMAT 3: 750 Q51 V40
GPA: 3.5
WE: Education (Education)
Followers: 47

Kudos [?]: 185 [1] , given: 78

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14 Feb 2011, 10:39
1
KUDOS
Percentage Distribution:
30 Dark Chocolates
25 Milk Chocolates
20 Taffy
5 Caramel
20 Cream

Number of candy per box = 20
Number of boxes = 80
Total number of candies = 80 x 20 = 1600

Number of Taffy = 20/100 x 1600 = 320

Rest of the lot is 1600 - 320 = 1280

So if he picks 1280 candies, there is a possibility that it doesn't include a Taffy!

But... if he picks 1281 candies, there must be atleast 1 Taffy in it!

So ans: 1281
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Director
Status: -=Given to Fly=-
Joined: 04 Jan 2011
Posts: 834
Location: India
Schools: Haas '18, Kelley '18
GMAT 1: 650 Q44 V37
GMAT 2: 710 Q48 V40
GMAT 3: 750 Q51 V40
GPA: 3.5
WE: Education (Education)
Followers: 47

Kudos [?]: 185 [0], given: 78

### Show Tags

14 Feb 2011, 09:44
Manager
Joined: 27 Jul 2010
Posts: 197
Location: Prague
Schools: University of Economics Prague
Followers: 1

Kudos [?]: 33 [0], given: 15

### Show Tags

14 Feb 2011, 09:46
Here is the question:

A candy factory manufactures various types of candy: 30% are dark chocolate, 25% are milk chocolate, 20% taffy, 5% caramel, and the rest are cream. Due to a hardware failure, all of the candy are mixed and dispatched into boxes holding 20 individually wrapped pieces of candy each. If 80 boxes are packed before the failure is caught, what is the maximum number of candy pieces a quality control inspector can open before coming across a taffy candy?

61
120
800
1281
1321

:D
_________________

You want somethin', go get it. Period!

Manager
Joined: 27 Jul 2010
Posts: 197
Location: Prague
Schools: University of Economics Prague
Followers: 1

Kudos [?]: 33 [0], given: 15

### Show Tags

14 Feb 2011, 11:40
Entwistle wrote:
Percentage Distribution:
30 Dark Chocolates
25 Milk Chocolates
20 Taffy
5 Caramel
20 Cream

Number of candy per box = 20
Number of boxes = 80
Total number of candies = 80 x 20 = 1600

Number of Taffy = 20/100 x 1600 = 320

Rest of the lot is 1600 - 320 = 1280

So if he picks 1280 candies, there is a possibility that it doesn't include a Taffy!

But... if he picks 1281 candies, there must be atleast 1 Taffy in it!

So ans: 1281

Yes, but the question say: What is the maximum number of candy pieces a quality control inspector can open before coming across a taffy candy. - This number is 1280 in my eyes.
_________________

You want somethin', go get it. Period!

Manager
Joined: 02 Apr 2010
Posts: 103
Followers: 5

Kudos [?]: 111 [0], given: 18

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20 Feb 2011, 08:23
I think whether the correct answer is 1280 or 1281 is a matter of interpretation. You could argue that you first have to open the 1281th candy to see that it is in fact a Taffy.

At the end of the day it doesn't really matter as the other answer choices are not even close.
Joined: 19 Feb 2010
Posts: 401
Followers: 22

Kudos [?]: 155 [0], given: 76

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08 Aug 2011, 08:13
I agree there is a problem with the wording. I also got confused with the "before coming across a taffy candy" phrase. To solve it, the answer should be 1280 or the wording should be changed to "until coming across a taffy candy".

It's not that the other answer choices are not close. After seeing so many tricky questions, you don't want your answer to be wrong because you are on the other side of the limit. My opinion is that the question shouldn't give place to confusion.
Re: m05 - 25/37   [#permalink] 08 Aug 2011, 08:13
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# m05 - 25/37

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