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4 years ago

5

The average of three numbers is 94. The average of four different numbers is 87. What is the weighted mean of all the numbers to

gether?

1 answer:

enyata [817]4 years ago

5 0

((94 * 3) + (87 * 4)) : 7 = (282 + 348) : 7 = 630 : 7 = 90 - answer.

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