Answer the questions on the basis of the information given below.
Ram and Shyam run a race between points A and B, 5 km apart. Ram starts at 9 a.m. from A at a speed of 5km/hr, reaches B, and returns to A at the same speed. Shyam starts at 9 : 45 a.m. from A at a speed of 10km/hr, reaches B and comes back to A at the same speed.
At what time does Shyam overtake Ram?