A thief flees City A in a car towards City
B on a stretch of straight road, 300 kilometres long, at the speed of 60km/hr. In 15 minutes a police party (X) leaves city A to chase the thief at 65 km/hr.
If a police party (Y) were to leave City B at the same time as police party X leaving City A to catch the thief at 60km/hr., then which of the following statements is true?

1.Party X reaches 37.5 minutes after Party Y has caught the thief.
2.Party Y reaches 37.5 minutes after Party X has caught the thief
3.Party X and Party Y has caught the thief together.
4.Party X was 20 km away when the thief caught.