List of top Quantitative Aptitude Questions on Speed, Time and Distance asked in BHU PET

A student goes to school at the speed of \( 2 \frac{1}{2} \) km/hr and reaches 6 minutes late. If he travels at the speed of 3 km/hr, he is 10 minutes early, then the distance to school from his home is:
Two trains of lengths 150 metres and 180 metres respectively, are running in opposite directions on parallel tracks. If their speeds are 30 km/hr and 24 km/hr respectively, then the time taken by them to cross each other is:
A boat goes 16 km upstream and 24 km downstream in 6 hours. It can go 12 km upstream and 36 km downstream in the same time. The speed of the boat in still water is: