MCQ Practice Mathematics 📖 A motorist travels to a place 150 km away at an average speed of 50 km and returns at 30 km per hour. What is his average spe... 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 car travles 180 km from A to B at 60 kilometers/hour and returns from B to A along the same route at 90 kilometers/hour. Th... NextA school had 100 students aged 20years on an average. At the of the year 20 students aged 22 years on an average left and 25 ...