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# The arithmetic mean (average) of m and n is 50, and the arithmetic mea

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Math Expert
Joined: 02 Sep 2009
Posts: 58428
The arithmetic mean (average) of m and n is 50, and the arithmetic mea  [#permalink]

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09 Apr 2019, 23:43
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Difficulty:

15% (low)

Question Stats:

100% (00:36) correct 0% (00:00) wrong based on 14 sessions

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The arithmetic mean (average) of m and n is 50, and the arithmetic mean of p and q is 70. What is the arithmetic mean of m, n, p, and q?

(A) 55
(B) 65
(C) 60
(D) 120
(E) 130

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Joined: 31 Oct 2013
Posts: 1465
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: The arithmetic mean (average) of m and n is 50, and the arithmetic mea  [#permalink]

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10 Apr 2019, 00:19
Bunuel wrote:
The arithmetic mean (average) of m and n is 50, and the arithmetic mean of p and q is 70. What is the arithmetic mean of m, n, p, and q?

(A) 55
(B) 65
(C) 60
(D) 120
(E) 130

Sum of m and n = 50*2 = 100

Sum of p and q = 70 * 2 = 140.

Average of m, n , p and q = 100 + 140 / 4 = 60.

C is the correct answer.
Re: The arithmetic mean (average) of m and n is 50, and the arithmetic mea   [#permalink] 10 Apr 2019, 00:19
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# The arithmetic mean (average) of m and n is 50, and the arithmetic mea

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