Question 424448
one canned juice drink is 20% orange juice another is 5% orange juice. how many liters of each should be mixed together in order to get 15 liters that is 16% orange juice?
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Using 2 Equations:
Quantity::: t +     f = 15 liters
Juice:::0.20t + 0.05f = 0.16*15 liters
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Multiply thru the 1st eq. by 5
Multiply thru the 2nd eq. by 100
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5t    +   5f  = 5*15
20t   +   5f  = 16*15
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Subtract and solve for "t":
15t = 11*15
t = 11 liters (amt. of 20% juice needed)
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Solve for "f":
t + f = 15
11 +f = 15
f = 4 liters (amt. of 5 % juice needed)
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Cheers,
Stan H.
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