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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2508
Given Kudos: 1053
GPA: 3.39
The average of four numbers is 20. If one of the numbers is
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07 Nov 2019, 22:25
07 Nov 2019, 22:25
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Question Stats:
77% (00:32) correct
22% (00:39) wrong based on 9 sessions
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The average of four numbers is 20. If one of the numbers is removed, the average of the remaining numbers is 15. What number was removed?
(A) 10
(B) 15
(C) 30
(D) 35
(E) 45
(A) 10
(B) 15
(C) 30
(D) 35
(E) 45
Re: The average of four numbers is 20. If one of the numbers is
[#permalink]
08 Nov 2019, 02:19
08 Nov 2019, 02:19
2
GeminiHeat wrote:
The average of four numbers is 20. If one of the numbers is removed, the average of the remaining numbers is 15. What number was removed?
(A) 10
(B) 15
(C) 30
(D) 35
(E) 45
(A) 10
(B) 15
(C) 30
(D) 35
(E) 45
Here,
Sum of 4 nos = 80
Sum of the remaining 3 nos = 45
Number removed = 80 - 45 = 35
gmatclubot
Re: The average of four numbers is 20. If one of the numbers is [#permalink]
08 Nov 2019, 02:19
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