Management Aptitude Test Sep 2013 Paper

Rohit would like to attend his college day celebration. He has to travel a certain distance from his home. H e look s at his watch and he immediately does some calculation and comes to know that if he drives at a speed o f 40 km/h he will reach his college 10 min late and if he drives at a speed o f 50 km/h he will reach 5 min early. W hat is the distance that Rohit has to cover?