Three of four numbers have a sum of 22. If the average of
the four numbers is 8, what is the fourth number?

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Solution

The correct option is A 10
Let the fourth number be $x$
We get $(22 + x) / 4 = 8$ , which implies $x = 32 - 22 = 10$

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Three of four numbers have a sum of 22. If the average ofthe four numbers is 8, what is the fourth number?

The correct option is A 10Let the fourth number be xWe get (22+x)/4=8 , which implies x=32−22=10

Three of four numbers have a sum of 22. If the average of
the four numbers is 8, what is the fourth number?

The correct option is A 10
Let the fourth number be $x$
We get $(22 + x) / 4 = 8$ , which implies $x = 32 - 22 = 10$