MCQ Practice Mathematics 📖 a , b, c, d ক্রমিক সমানুপাতী হলে নিচের কোনটি সঠিক? A ab = cd B ac = bd C ad = bc D কোনোটিই নয় Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up Previousa : b = 4 : 7 এবং b : c = 5 হলে a : b : c এর মান কোনটি? NextA chemist is mixing acid and water. Out of the 30 ml mixed such that a 50/50 mixture of water and acid is attained if no addi...
