MCQ Practice Math 📖 ১৮. The average height of girls in a class is 5 ft and that of boys is 5.7 ft. If the average height of the students in cla... 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 71 PreviousA 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 ... NextThe value of "A" varies in inverse proportion as the square of "B". If the value of "A" is equal to 40 , when "B" is ...
