MCQ Practice Mathematics 📖 A 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 ... 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 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... NextA train passes city X at 8.25 am and city Y at 11.05 am. The distance between city X and Y is 320 miles. What is the average ...
