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Audrey went shopping with D dollars. She spent 20% of her money on a

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Audrey went shopping with D dollars. She spent 20% of her money on a  [#permalink]

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New post 06 Nov 2018, 08:13
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A
B
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Difficulty:

  5% (low)

Question Stats:

92% (00:55) correct 8% (01:17) wrong based on 280 sessions

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Audrey went shopping with D dollars. She spent 20% of her money on a blouse and 25% of what was left on a pair of shoes. What per cent of the original D dollars did she spend?

(A) 25%
(B) 40%
(C) 45%
(D) 47%
(E) 50%

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Re: Audrey went shopping with D dollars. She spent 20% of her money on a  [#permalink]

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New post 06 Nov 2018, 08:38
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Quote:
Audrey went shopping with D dollars. She spent 20% of her money on a blouse and 25% of what was left on a pair of shoes. What per cent of the original D dollars did she spend?


Let D = $ 100

She spent on blouse: (20/100) * 100 = $ 20 .... (1)

Remaining amount that she has: $ 80

Of this 25% ie 1/4 she spent on shoes. So amount that she spent on shoes = $ 80 * (1/4) = $ 20 . .. (2)

Total amount spent = (1) + (2) = $40 and 40/100 = 40%

OA: B

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Re: Audrey went shopping with D dollars. She spent 20% of her money on a  [#permalink]

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New post 06 Nov 2018, 09:45
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Spent on blouse : 0.2D
Spent on shoes: 0.25(1-0.2)D=0.25*0.8 D= 0.2D
Total spent = 0.2D+0.2D =0.4D i.e, 40 % of D dollars.... Ans B
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Re: Audrey went shopping with D dollars. She spent 20% of her money on a  [#permalink]

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New post 07 Nov 2018, 05:19
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let the D be 100.

Blouse = 20

Remaining = 80

Shoes = 80 * 25% = 20

Total expenditure = 40 .

So, she spends 40% of the D.

The correct answer is B.
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Re: Audrey went shopping with D dollars. She spent 20% of her money on a  [#permalink]

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New post 08 Nov 2018, 06:32
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Total amount she has is D dollars.

so she spent 0.2D remains 0.8D. From the remaining she spent 25%

0.8 = 4/5

4/5 * 1/4 = 1/5 means another 20%

She spent 0.2D + 0.2D = 0.4D

Answer choice B
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Re: Audrey went shopping with D dollars. She spent 20% of her money on a  [#permalink]

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New post 08 Nov 2018, 07:21
HKD1710 wrote:
Audrey went shopping with D dollars. She spent 20% of her money on a blouse and 25% of what was left on a pair of shoes. What per cent of the original D dollars did she spend?

(A) 25%
(B) 40%
(C) 45%
(D) 47%
(E) 50%

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Let D = 100

Amount spent on Blouse = 20 ; Amount Left = 80
Amount spent on Shours = 20 ; Amount Left = 60

Thus, Amount spent is 40; Answer must be (B) 40 %
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Re: Audrey went shopping with D dollars. She spent 20% of her money on a  [#permalink]

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New post 26 Nov 2018, 04:03
No need to solve. Look at the choices.
It can't be A. since we have spent 20% already.
The total spent is 20% + 25% = 45%, but we have spent 25% of a lesser amount.
Hence the max can be 45% which is C
So the answer must be B 40%
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Re: Audrey went shopping with D dollars. She spent 20% of her money on a   [#permalink] 26 Nov 2018, 04:03
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