A barrel contains a mixture of win and water in the ratio 3:1. How much fraction of the mixture must be drawn off and substituted by water so that the ratio of wine and water in the resultant mixture in the barrel becomes 1:1
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Answer:
1/3 fraction of the inital mixture
Step-by-step explanation:
Given, initial mixture in the barrel
Wine : Water = 3:1
Let he total volume of mixture = X
∴ Inital mixture contains
Volume of wine Ni = (3/4)X
Volume of water Ti = (1/4)X
Final mixture contains the ration of water and wine = 1:1
∴ Volume of wine in final mixture Nf = X/2
Change in volume of wine = Ni - Nf = 0.75X - 0.5X = 0.25X
∴ Mixture containing wine of actual volume 0.25X must be drawn from the initial mixture.
But Wine to water ration = 3:1
∴ When 0.25X wine is drawin, water of (0.25/3)X must be in that mixture.
∴ Total valume of mixture = 0.25 X + (0.25/3)X = (1/3) X liters.
∴ 1/3 fraction of the mixture must be drawon and substituted with water
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