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18 November, 03:17

Three of four numbers have a sum of 22. If the average of

the four numbers is 8, what is the fourth number?

A. 4

B. 6

C. 8

D. 10

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Answers (1)
  1. 18 November, 03:40
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    - - If the average of 4 numbers is 8, then they must all add up to 32.

    - - If 3 of them add up to 22, then the 4th number is 10.
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