SOLUTION: Three of four numbers have a sum of 90. If the average of the 4 numbers is 35. What is the missing number?

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Question 927243: Three of four numbers have a sum of 90. If the average of the 4 numbers is 35. What is the missing number?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
the average of the 4 numbers is 35
4*35 = 140
.......
Three of four numbers have a sum of 90
140-90 = 50, the missing number
checking
(90+50)/4 = 35