Venue: Verizon Data Services India Pvt Ltd. Olympia Tech Park No1: Sidco Industrial Estate Guindy Chennai - 32 Date: 17 Nov 2006, Friday Time: 12.00pm (noon) 1). Two trains are on the same track a distance 300 km apart heading towards one another, One at a speed of 150 km/h and other at a speed of 50 km/h. A fly starting out at the front of one train, flies towards the other at a speed of 600 km/h. Upon reaching the other train, the fly turns around and continues towards the first train.