24 lbs of coffee P and 25 lbs of coffee V are mixed to make

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24 lbs of coffee P and 25 lbs of coffee V are mixed to make [#permalink]

12 Feb 2006, 01:15

24 lbs of coffee P and 25 lbs of coffee V are mixed to make coffee X and Y. The ratio of P to V in coffee X is 4 to 1, in Y is 1 to 5. How much of P is contained in the mixture X?

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12 Feb 2006, 02:59

P/V=4/1 in X P/V=1/5 in Y then P=4v and P=V/5 then V+4V+V+V/5=49 then V=245/31 and P in X is 980/31
may be i am wrong

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12 Feb 2006, 04:16

Coffee X: Ratio of P to V is 4:1
Coffee Y: Ratio of P to V is 1:5

I used plug-in formula..

Coffee X: 20 P and 5 V
Coffee Y: 4 P and 20 V
---------------------------
Total Coffee: 24 P and 25 V

Ans: 20 lbs of P is in X.

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12 Feb 2006, 09:06

Agree with coolfish. It is 20

p1/v1 = 4/1 => p1 = 4v1 --(1)
p2/v2 = 1/5 => p2 = v2/5 --(2)

p1+p2 = 24 -- (3)
v1+v2 = 25 -- (4)

Using (1) & (2) in (3) and solving (3) and (4),
v1 = 5, v2 = 20
p1 = 20 p2 = 4

Hence p1 = 20
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[#permalink] 12 Feb 2006, 09:06

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24 lbs of coffee P and 25 lbs of coffee V are mixed to make

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24 lbs of coffee P and 25 lbs of coffee V are mixed to make

24 lbs of coffee P and 25 lbs of coffee V are mixed to make

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