if the mean of a and b is 8.5 and the mean of a , b , c is 7 , then find the value of c .
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Measure if 2values be x so,8x+5x and value of c is x,8x+5x+x=7 AQS,14x=7 x=14/7 and x=7 i hop this ans is crrct
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The answer of C is 4
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