Multiple choice

In a mixture of 55 kg., the ratio of milk and water is 7:4. What is the quantity of water added to the mixture in order to make the ratio 7:6? 55 किग्रा. के एक मिश्रण में दूध और पानी का अनुपात 7 : 4 है। अनुपात को 7: 6 करने के लिए मिलाये जाने वाले पानी की मात्रा क्या है?

  1. 15 kg.

  2. 10 kg.

  3. 5 kg.

  4. 12 kg.

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In 55 kg mixture with 7:4 ratio, milk = 35 kg, water = 20 kg (7+4=11 parts, each part = 5 kg). To make ratio 7:6, add x kg water: 20+x = 6/7 × 35 = 30, so x = 10 kg. Only water quantity changes.

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