<PRE><B>Question 973979</B>
how many quarts of type P punch, which is 3% alcohol and type Q punch, which is 8% alcohol, should be combined to get 20 quarts of punch that is 6% alcohol?
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Equation:
alch + alch = alch
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0.03p + 0.08(20-p) = 0.06*20
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3p + 8*20 - 8p = 6*20
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-5p = -2*20
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p = 8 qts (amt. of P punch needed)
20-p = 12 qts (amt of Q punch needed)
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Cheers,
Stan H.</PRE>