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Find three numbers with a mode of 5 and a mean of 7.

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find 3 numbers with a mode of 5 and a mean of 7?

asked Nov 27, 2013 in ALGEBRA 2 by dkinz Apprentice

1 Answer

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Mean of three numbers = sum of three numbers/3 = 7

We know that mode is score that occures most.

Here mode = 5

That means  two numbers of threenumbers is 5,5.

Now find third number of series.

 Here x is third number.

mean = 5+5+x/3 = 7

10+x/3 = 7

Multiple to each side by 3.

(10+x)3/3 = 7*3

10+x = 21

Subtract 10 from each side.

10-10+x = 21-10

x = 11

required numbers are 5,5,11.

answered Nov 27, 2013 by william Mentor

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