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Betty left home with $60 in her wallet. She spent 1/3 of that amount a

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Betty left home with $60 in her wallet. She spent 1/3 of that amount a [#permalink]

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Betty left home with $60 in her wallet. She spent 1/3 of that amount at the supermarket, and she spent 1/2 of what remained at the drugstore. If Betty had no other expenditures, how much money did she have when she returned home?

(A) $10

(B) $15

(C) $20

(D) $40

(E) $50
[Reveal] Spoiler: OA

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Re: Betty left home with $60 in her wallet. She spent 1/3 of that amount a [#permalink]

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New post 30 Jan 2018, 23:23
total = 60

1/3rd spent in super market= 1/3(60) = 20
remaining = 40
half of remaining is spent in drug store = 40/2 =20

so amount left = 60-20-20= 20


Ans is 20
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Re: Betty left home with $60 in her wallet. She spent 1/3 of that amount a [#permalink]

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New post 31 Jan 2018, 03:07
Bunuel wrote:
Betty left home with $60 in her wallet. She spent 1/3 of that amount at the supermarket, and she spent 1/2 of what remained at the drugstore. If Betty had no other expenditures, how much money did she have when she returned home?

(A) $10

(B) $15

(C) $20

(D) $40

(E) $50


Solution



    • Initial Amount with Betty \(= $60\)

    • Amount spent at the supermarket \(= \frac{1}{3} *\) Initial Amount \(= \frac{1}{3}* 60 = $20\)

      o Amount Left \(= $ (60-20) = $40\)

    • Amount Spent at the drugstore \(= \frac{1}{2} *\) Amount Left \(= \frac{1}{2} * 40 = $20\)

    • Since she did not do any other shopping. The amount she had when she returned home = Amount Left after spending in supermarket – Amount Spent at Drugstore \(= $ (40 – 20) = $20\).

Correct Answer : Option C.


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Re: Betty left home with $60 in her wallet. She spent 1/3 of that amount a [#permalink]

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New post 31 Jan 2018, 10:16
Bunuel wrote:
Betty left home with $60 in her wallet. She spent 1/3 of that amount at the supermarket, and she spent 1/2 of what remained at the drugstore. If Betty had no other expenditures, how much money did she have when she returned home?

(A) $10

(B) $15

(C) $20

(D) $40

(E) $50

Amount spend at super market is $ 20 ; Amount left is $ 40
Amount spend at drugstore is $ 20 ; Amount left is $ 20

So, Final amount she saved is (D) $ 20
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Re: Betty left home with $60 in her wallet. She spent 1/3 of that amount a [#permalink]

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New post 02 Feb 2018, 11:07
Bunuel wrote:
Betty left home with $60 in her wallet. She spent 1/3 of that amount at the supermarket, and she spent 1/2 of what remained at the drugstore. If Betty had no other expenditures, how much money did she have when she returned home?

(A) $10

(B) $15

(C) $20

(D) $40

(E) $50


After spending 1/3 of her money at the supermarket, Betty has 2/3 x 60 = 40 dollars left. After spending half of the 40 remaining dollars, she has 20 dollars left.

Answer: C
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Re: Betty left home with $60 in her wallet. She spent 1/3 of that amount a [#permalink]

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New post 03 Feb 2018, 18:29
Supermarket = $20
drugstore =1/2(60-20) =20
remaining when she came home - $20 .

took 20 sec, A catch !?? :think:
Re: Betty left home with $60 in her wallet. She spent 1/3 of that amount a   [#permalink] 03 Feb 2018, 18:29
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