Question

How much water should be added in 48 ml of alcohol
so as to make it a 25% alcohol solution​

Answer 1

(48/x+48)*100=25

48*4=x+48

x=144ml

Answer 2

Step-by-step explanation:

$let \\ the \: quantity \: of \: water \: be \: x \\ so \\ = \frac{100 +25}{100} \times 48 \\ = \frac{125}{100} \times 48 \\ = 5 \times 12 \\ = 60\\ now \: quantity \: of \: water \\ = > x + 48 = 60 \\ = > x = 60 - 12 \\ = > x = 12ml$

hence the quantity of water should be added 12ml in alcohol than it will be equal to 25%