MCQ Practice Math 📖 A boy goes to school at a speed of 5 km/h and returns to the village at a speed of 4 km/hr. If he takes 4 hours and 30 ... 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 This question appeared in JBL RBL Officer Question Bank 2019 Question 40