প্রশ্ন সংশোধন করুন
প্রশ্ন:
A mixture of 20 kg of spirit and water contains 10% water . How much water must be added to mixture to raise the percentage of water to 25%
A mixture of 20 kg of spirit and water contains 10% water . How much water must be added to mixture to raise the percentage of water to 25%