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# Today, all the items in a store are 30% discounted.

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Senior Manager
Joined: 08 Aug 2005
Posts: 251

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Today, all the items in a store are 30% discounted. [#permalink]

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21 Apr 2006, 03:10
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Today, all the items in a store are 30% discounted. Currently, the kitchen items are 20% discounted. Based on this 20% discounted price, how much is the discount today?

10%
12.5%
33.3%
50%

Kudos [?]: 67 [0], given: 0

Senior Manager
Joined: 15 Mar 2005
Posts: 418

Kudos [?]: 29 [0], given: 0

Location: Phoenix

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21 Apr 2006, 11:09
Not very clear language, but if your question involves applying 20% discount on an article which is already 30% discounted, we're talking about applying a total of 30 + (100-30)x20/100 = 44% discount.

This of course is not even in the list of answers. Can you please explain the question again?
_________________

Who says elephants can't dance?

Kudos [?]: 29 [0], given: 0

Manager
Joined: 20 Mar 2005
Posts: 201

Kudos [?]: 16 [0], given: 0

Location: Colombia, South America

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21 Apr 2006, 11:23
getzgetzu wrote:
Today, all the items in a store are 30% discounted. Currently, the kitchen items are 20% discounted. Based on this 20% discounted price, how much is the discount today?

10%
12.5%
33.3%
50%

I agree, language in this problem is not very clear, however,

based on 20% discount

(0.8 - 0.7) / 0.8 = 12.5%

Kudos [?]: 16 [0], given: 0

Senior Manager
Joined: 15 Mar 2005
Posts: 418

Kudos [?]: 29 [0], given: 0

Location: Phoenix

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21 Apr 2006, 11:30
conocieur wrote:
getzgetzu wrote:
Today, all the items in a store are 30% discounted. Currently, the kitchen items are 20% discounted. Based on this 20% discounted price, how much is the discount today?

10%
12.5%
33.3%
50%

I agree, language in this problem is not very clear, however,

based on 20% discount

(0.8 - 0.7) / 0.8 = 12.5%

Oh you calculated on the basis of total discount being 30%, and one discount being 20%, what was the other discount???
So after 20% discount, 0.8 (1-x) = 0.7
=> 1-x = .7/.8 = 0.875 => x = .125 = 12.5%????

I didn't get the very simplistic calculation that you did. Tell me the secret
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Who says elephants can't dance?

Kudos [?]: 29 [0], given: 0

Re: PS Discount   [#permalink] 21 Apr 2006, 11:30
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