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The mean of a, b, c, and d is 9 and the mean of a, b, c, d, e and f is 12. Find the mean of e and f. With Step by step explanation​

The mean of a, b, c, and d is 9 and the mean of a, b, c, d, e and f is 12. Find the mean of e and f. With Step by step explanation​
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3 votes
The mean of a, b, c, and d is 9 and the mean of a, b, c,

d, e and f is 12. Find the mean of e and f.

With Step by step explanation​

asked
User Christian Brunschen
by
7.9k points

1 Answer

3 votes

mean of e and f is 18

answered
User Shenanigator
by
7.5k points
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