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Sarah pours four ounces of coffee into an eight-ounce cup and four oun 14 Mar 2019, 23:47
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Difficulty:

45% (medium)

Question Stats:

69% (02:18) correct 31% (02:17) wrong based on 293 sessions

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TOUGH QUESTION:



Sarah pours four ounces of coffee into an eight-ounce cup and four ounces of cream into a second cup of the same size. She then transfers half the coffee from the first cup to the second and, after stirring thoroughly, transfers half the liquid in the second cup back to the first. What fraction of the liquid in the first cup is now cream?


(A) 1/4

(B) 1/3

(C) 3/8

(D) 2/5

(E) 1/2
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D
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Schools: IIM (A) ISB '24
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Sarah pours four ounces of coffee into an eight-ounce cup and four oun 15 Mar 2019, 04:38
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Bunuel

TOUGH QUESTION:



Sarah pours four ounces of coffee into an eight-ounce cup and four ounces of cream into a second cup of the same size. She then transfers half the coffee from the first cup to the second and, after stirring thoroughly, transfers half the liquid in the second cup back to the first. What fraction of the liquid in the first cup is now cream?


(A) 1/4

(B) 1/3

(C) 3/8

(D) 2/5

(E) 1/2
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Please find the solution as attached.

Answer: Option D
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File comment: www.GMATinsight.com
WhatsApp Image 2019-03-15 at 5.06.06 PM.jpeg
WhatsApp Image 2019-03-15 at 5.06.06 PM.jpeg [ 84.66 KiB | Viewed 6214 times ]

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Sarah pours four ounces of coffee into an eight-ounce cup and four oun 16 Mar 2019, 04:01
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Bunuel

TOUGH QUESTION:



Sarah pours four ounces of coffee into an eight-ounce cup and four ounces of cream into a second cup of the same size. She then transfers half the coffee from the first cup to the second and, after stirring thoroughly, transfers half the liquid in the second cup back to the first. What fraction of the liquid in the first cup is now cream?


(A) 1/4

(B) 1/3

(C) 3/8

(D) 2/5

(E) 1/2
Show more

CUP 1 = 4 OUNCES COFFEE
CUP2= 4 OUNCES CREAM
NOW
POURING 2 OUNCES COFFEE TO CUP2 ;
CUP 2 HAS ; 2 OUNCES COFFEE + 4 OUNCES CREAM
AFTER STIRRING
HALF VOLUME OF CUP 2 IS POURED TO CUP 1
WE ARE SUPPOSSING THAT MIXTURE IS EVENLY DISTRIBUTED UPON STIRRING
SO COFFEE POURED TO CUP 1 IS HALF OD 2 OUNCES ; 1 OUNCE
AND CREAM ; 4 OUNCE HALF = 2 OUNCE
SO NOW
CUP 1 HAS TOTAL 3 OUNCE COFFEE AND 2 OUNCE CREAM
OR SAY
FRACTION OF CREAM IN CUP 1 2/5
IMO D
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Sarah pours four ounces of coffee into an eight-ounce cup and four oun 20 Jun 2024, 06:14
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