MCQ Practice Mathematics 📖 Two trains starting at the same time from 2 statins 400 km apart and going in opposite direction corss each other at a distac... 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 PreviousTrain X covers a distance of 150 km in 2 hours. Train Y covers a distance of 135 km in 3 hours. What is the ratio of speed of... Nextx : y = 3 : 4 হয়, তবে 3y - x : 2x + y =?