SOLUTION: If d mean of seven number is 96 and an eighth number is added which makes the number becomes 112. What wil b dat eighth number?
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Question 618667: If d mean of seven number is 96 and an eighth number is added which makes the number becomes 112. What wil b dat eighth number? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! If the mean of seven numbers is 96 and an eighth number is added which makes the mean becomes 112. What will that eighth number be?
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The 1st seven numbers have a sum = 7*96 = 672 points
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Let the eighth number be "x":
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Equation:
(672+x)/8 = 112
672+x = 8*112
x = 8*112 -672
x = 224
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Cheers,
Stan H.
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