Question

40 litres of milk contain 10% water find the quality of water to be added to the milk so that it may contain 20% water​

Answer 1

Answer:

10% of 40 litre = 4 litre

similarly

20% of 40 litre = 8 litre

therefore water to be added =8 litres

Answer 2

Step-by-step explanation:

Answer:

Amount of water = 10% = 10/100x 40=4 liters amount of milk 40-4=36 liters.

Milk 10 = 40 liter; water 100 = 1 liter;

mixture 20= 40l x l= 10*40 + 100x = 20 (40+x)x=5.

The answer is 5 liters of water.