If Ram walks from his house at 5 kmph, he reaches school 5 min early, and if he walks at 4 kmph he reaches it 5 min late. What is the actual distance between Ram's house and his school?
Distance from point A and point B is 300km. A man drives a car and reduce his speed by 5kmh^-1. He arrives 40 minutes later than usual. Calculate the original speed in kmh^-1 of the car?