The average arithmetic mean of x,y, and z is 50. what is the sum of (4x+y),(3y+z) and 3z?
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since each value of x , y, z is 50 then sum is
(4*50+50) ,(3*50+50 ) and 3*50 =600 total
(4*50+50) ,(3*50+50 ) and 3*50 =600 total
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