Correct Answer: 2:1
Explanation:
Step 1: Understand the initial mixture
Step 2: Add 7 litres of water
New water = 7 (original) + 7 (added) = 14 litres Milk remains unchanged = 28 litres
Step 3: New ratio of milk to water
Milk : Water = 28 : 14 = 2 : 1
Answer: 2 : 1
After adding 7 litres of water, the new ratio of milk to water becomes 2:1.
This problem teaches how proportions change when new quantities are added to a mixture. It’s a classic mixture and ratio question frequently asked in aptitude exams. By mastering such questions, students can improve their speed and accuracy in competitive test sections related to quantitative aptitude.
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