Question

40 litre of milk contains 10% water. Find the quantity of water to be added to the milk so that it may contain 20% water.​

Answer 1

Answer:

5L of water

Step-by-step explanation:

Milk 10 ---------------- 40 L

Water 100 ---------------- x L

Mixture 20 ---------------- 40 + x L

10*40+100x=20(40+x)

400+100 x=800+20x

100x-20 x=800+400

80x=400

/ 80

x= 5

5L of Water