A milkman adds 10 liters water in 10 liter milk. His son takes 15 liters of milk and adds 5 liter water in it. Find out the amount of water in the mixture?

🧠 Explanation (Math):

Given: 10 L milk + 10 L water → 20 L mix; son takes 15 L of mix and adds 5 L water; find water in final 20 L
Step 1: Water fraction in original mix = 10/20 = 1/2
Step 2: Water in 15 L taken = 15 × 1/2 = 7.5 L
Step 3: Add 5 L water ⇒ total water = 7.5 + 5 = 12.5 L
Final Answer: 12.5