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# The average of 5 quantities is 6. The average of 3 of them is 8. What

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Math Expert
Joined: 02 Sep 2009
Posts: 59561
The average of 5 quantities is 6. The average of 3 of them is 8. What  [#permalink]

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21 Feb 2019, 00:34
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Difficulty:

25% (medium)

Question Stats:

87% (00:53) correct 13% (01:01) wrong based on 15 sessions

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The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?

A. 6.5
B. 4
C. 3.5
D. 3
E. 2.5
VP
Joined: 31 Oct 2013
Posts: 1489
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: The average of 5 quantities is 6. The average of 3 of them is 8. What  [#permalink]

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21 Feb 2019, 01:52
Bunuel wrote:
The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?

A. 6.5
B. 4
C. 3.5
D. 3
E. 2.5

Total of 5 quantities = 5*6 = 30

Total of 3 quantities = 3*8 = 24

Sum of the 2 quantities = 30 - 24 = 6

Average of the 2 quantities = 6/2 = 3.

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Joined: 18 Aug 2017
Posts: 5428
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: The average of 5 quantities is 6. The average of 3 of them is 8. What  [#permalink]

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21 Feb 2019, 09:45
Bunuel wrote:
The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?

A. 6.5
B. 4
C. 3.5
D. 3
E. 2.5

5*6-3*8 = 6
6/2 = 3
IMO D
Re: The average of 5 quantities is 6. The average of 3 of them is 8. What   [#permalink] 21 Feb 2019, 09:45
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