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What is the mean of a series of 5 integers that satisfies the followin

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What is the mean of a series of 5 integers that satisfies the followin [#permalink] New post   24 Sep 2024, 01:06
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What is the mean of a series of 5 integers that satisfies the following conditions?

I. Median of the series is 7,
II. Mode of the series is 4 and,
III. The arithmetic mean of the largest and second largest number in the series is 20.

A. 7
B. 9
C. 11
D. 13
E. 15


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Re: What is the mean of a series of 5 integers that satisfies the followin [#permalink] New post   24 Sep 2024, 18:32
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I. Median of the series is 7 => The series: a b 7 c d
II. Mode of the series is 4 => a = b = 4, the series: 4 4 7 c d
III. The arithmetic mean of the largest and second largest number in the series is 20 => (c + d) / 2 = 20 <=> c + d = 40
=> mean of series = (4 + 4 + 7 + 40)/5 = 11
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Re: What is the mean of a series of 5 integers that satisfies the followin [#permalink]
24 Sep 2024, 18:32
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