B.A./B.COM. LL.B. (5 YEAR LAW / U.G. LAW) Panjab University Entrance Exam 2023 : MCQs and Answer Key

In a flight of 600 km, an aircraft slowed due to bad weather. Its average speed for the trip was reduced by 200km/hr and the time of the flight was increased by 30 minutes. The duration of the flight is :