Monday, 2 July 2012

Journey to home

A student leaves the coaching everyday at 11. His brother leaves the house some time before 11 to reach coaching at 11 to pick the student. One day, the coaching got over at 10 and the student started walking towards home at 8km/hr. In the way, he found his brother coming and then they went together reaching home 20 mins earlier than usual time. Find the speed of his brother?