the arithmetic mean of x, y and z is 14.what is the arithmetic mean of 2x +3y , 4z + x and 18 - z
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the arithmetic mean of x, y and z is 14.what is the arithmetic mean of 2x +3y , 4z + x and 18 - z
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Answer:
(x+y+z)/3 = 14
x+y+z = 42
(x+y)/2= 42/2 -z/2
10–21 = -z/2
z=22. Ans.