the average of 40,80, and m is 50. if the average of 40, 80, m and v is 60, then v=

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1 Answer

(40 + 80 + m) / 3 = 50

40 + 80 + m = 150

120 + m = 150

m = 30

(40 + 80 + m + v) / 4 = 60

(40 + 80 + 30 + v) / 4 = 60

40 + 80 + 30 + v = 240

150 + v = 240

v = 90
by Level 13 User (103k points)

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