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A candy wholesaler needs to quickly sell some candy bars

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A candy wholesaler needs to quickly sell some candy bars [#permalink] New post 23 Nov 2010, 09:54
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  5% (low)

Question Stats:

44% (02:12) correct 56% (00:28) wrong based on 16 sessions
A candy wholesaler needs to quickly sell some candy bars that are nearing their expiration date, so he reduced the price of the candy bars. By what percent did he reduce the price of the candy bars?

(1) The price of a candy bar was reduced by 36 cents.

(2) If a candy retailer purchases a case of 144 candy bars from the wholesaler, she will save $51.84 as a result of the price reduction.
[Reveal] Spoiler: OA

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Re: Candy bar clearance [#permalink] New post 23 Nov 2010, 10:03
I definitely thought that the OA was wrong, so I posted the above problem.

However to explain my answer I was typing my explanation ... and realized that the OA is right. So sorry for adding another question to the thread ... no help needed as such.
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Re: Candy bar clearance [#permalink] New post 26 Nov 2010, 01:10
Hi Shouldn't the answer be C

combining the two statements we get

Let x cents be the original cost of one candy bar

144x-144 (x-36)= 5184
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Re: Candy bar clearance [#permalink] New post 26 Nov 2010, 02:04
AkritiMehta wrote:
Hi Shouldn't the answer be C

combining the two statements we get

Let x cents be the original cost of one candy bar

144x-144 (x-36)= 5184


your equation is correct. But hwen you solve it, it would be:
144x - 144x +144*36 = 5184
you would notice here that the x variable is getting cancellend. Hence, you would never be able to find out X!!

both the statements reveal the same thing... :lol:

I hope its clear now.

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Re: Candy bar clearance [#permalink] New post 26 Nov 2010, 02:29
Let the OLD price per candy is X
Let the NEW price per candy is Y

Given Y< X (price reduced)
Reduced price / candy is X-Y

Qtn: What percent of X is X-Y. Say P percent…what is P?
 X*p/100 =X-Y
 P=(X-Y)/X percent

Hence to answer this qtn: we need to know both X and Y OR both X-Y and X (which will in a way give Y too)

Stmnt1: says X-Y = 36 NOT suff. As no info abt X to determine P
Stmnt2: X-Y = $51.84 / 144 (this is nothing but stmnt 1)
In cents -> 5184/144 = 36 cents (i.e. stmnt1) hence NOT SUFF.
(This is one of the tricks in GMAT DS qtns where stmnt 1 says “Half of the glass is full” and stmnt2 says the same but differently like – “Half of the glass is empty”

1&2 no luck as both are same.

Answer “E”

Regards,
Murali.
Re: Candy bar clearance   [#permalink] 26 Nov 2010, 02:29
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