Question

Two jars of whisky with 25% and 40% concentration of alcohol respectively are mixed. In what proportion should the two types be mixed, so as to get 35% concentration of alcohol in the resulting mixture?

Answer 1

Answer:

1:2

Step-by-step explanation:

let 25% conc. be of x and 40% conc. be of y alcohol respectively.

25% of x + 40% of y = 35% (x + y)

0.25x + 0.4y = 0.35x + 0.35y

0.05y = 0.1x

5y/100 = x/10 => 5y = 10x

x/y = 5/10= 1/2 => x : y = 1:2

Answer 2

Answer:

1:2

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