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1/3 of the 90 ducks on a pond are mallards.
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19 Dec 2022, 01:48
19 Dec 2022, 01:48
1
Expert Reply
00:00
Question Stats:
94% (01:04) correct
5% (01:47) wrong based on 18 sessions
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1/3 of the 90 ducks on a pond are mallards. If 22 ruddy ducks and 18 white-faced whistling ducks depart from the pond, what fraction of the remaining ducks are mallards?
A. 3/13
B. 1/3
C. 4/9
D. 3/5
E. 2/3
A. 3/13
B. 1/3
C. 4/9
D. 3/5
E. 2/3
GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2508
Given Kudos: 1053
GPA: 3.39
Re: 1/3 of the 90 ducks on a pond are mallards.
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20 Dec 2022, 20:42
20 Dec 2022, 20:42
1
Expert Reply
We know that 1/3 of 90 Ducks are mallards, which means a total of 30 ducks are mallards. Out of 90 ducks, 40 depart 50 remains and out of those 50 ducks 30 are mallards and that is 60%
Answer: D
Answer: D
gmatclubot
Re: 1/3 of the 90 ducks on a pond are mallards. [#permalink]
20 Dec 2022, 20:42
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