Question 978322
P and Q represent numbers, and P*Q means (P+Q)/2. 
Comment:: They are defining * to mean "add P and Q; then divide by 2".
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What is the value of 3*(6*8)?
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Evaluate the parentheses to get:
3*((6+8)/2) = 3*(7)
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Ans: 3*7 = (3+7)/2 = 5
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Cheers,
Stan H.
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