falarose
falarose falarose
  • 18-08-2016
  • Mathematics
contestada

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

Respuesta :

AL2006
AL2006 AL2006
  • 18-08-2016
-- 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 .
Answer Link

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