Question

A mixture of 150 liters of wine and water contains 20% water. How much more water should be added so that water becomes 25% of the new mixture? *

Answer 1

Answer:

Number of liters of water in 150 liters of the mixture = 20% of 150 = 20/100 x 150 = 30 liters. P liters of water added to the mixture to make water 25% of the new mixture.

Answer 2

Let total liters = 100% (150 ltr.)

Now,

Value of 20% water = 20/100 x 150 = 30 ltr.

Now .

value of 25% water in wine will be,

25/100 x 150 =37.5,

Hence,

value of water to be added into the wine ,

37.5 -30 litre,

= 7.5 litre.