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A dress on sale in a shop is marked at $D. During the discount sale it

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A dress on sale in a shop is marked at $D. During the discount sale it  [#permalink]

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New post 18 May 2016, 01:49
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A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

84% (01:18) correct 16% (01:53) wrong based on 55 sessions

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A dress on sale in a shop is marked at $D. During the discount sale its price is reduced by 15%. Staff are allowed a further 10% reduction on the discounted price. If a staff member buys the dress what will she have to pay in terms of D ?

A. 0.75D
B. 0.76D
C. 0.765D
D. 0.775D
E. 0.805D

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Re: A dress on sale in a shop is marked at $D. During the discount sale it  [#permalink]

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New post 18 May 2016, 12:23
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C! 0.85D*0,90D=0,765D
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New post 18 May 2016, 18:20
should be C but i dont know why i got 765 without decimals ,,,, still its guided me to the right solution
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Re: A dress on sale in a shop is marked at $D. During the discount sale it  [#permalink]

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New post 18 May 2016, 21:05
1
Alnuaimi wrote:
should be C but i dont know why i got 765 without decimals ,,,, still its guided me to the right solution


Effective discount = a + b + ab/100 = - 15 - 10 + (-15)(-10)/100 = -23.5

Sale price = D * ( 1 - 23.5/100)

Sale price = .765 * D

Answer (C)

Check: http://www.veritasprep.com/blog/2011/02 ... e-changes/
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Re: A dress on sale in a shop is marked at $D. During the discount sale it  [#permalink]

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New post 19 May 2016, 05:21
Bunuel wrote:
A dress on sale in a shop is marked at $D. During the discount sale its price is reduced by 15%. Staff are allowed a further 10% reduction on the discounted price. If a staff member buys the dress what will she have to pay in terms of D ?

A. 0.75D
B. 0.76D
C. 0.765D
D. 0.775D
E. 0.805D


Successive doscounts = - a - b +ab/100
Putting the values,
Total discount = -15 - 10 + 150/100 = -25 + 1.5 = 23.5% discount

Hence the final price of the dress = D - 0.235D = 0.765D

Correct Option: C
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New post 19 May 2016, 09:31
After discount the price is .85D

For staff member the final price will be .85D- 10%.85D= .765D

C is the answer
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Re: A dress on sale in a shop is marked at $D. During the discount sale it  [#permalink]

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New post 11 Apr 2018, 16:24
Bunuel wrote:
A dress on sale in a shop is marked at $D. During the discount sale its price is reduced by 15%. Staff are allowed a further 10% reduction on the discounted price. If a staff member buys the dress what will she have to pay in terms of D ?

A. 0.75D
B. 0.76D
C. 0.765D
D. 0.775D
E. 0.805D


The staff member pays D x 0.85 x 0.9 = 0.765D.

Answer: C
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Re: A dress on sale in a shop is marked at $D. During the discount sale it  [#permalink]

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Re: A dress on sale in a shop is marked at $D. During the discount sale it   [#permalink] 28 Nov 2019, 05:38
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