Question : P and Q start from the same point and at the same time with speeds of 20 km/hr and 16km/hr respectively. What is the distance between P and Q after 4 hours if both move in the same direction?

Option 1: 12 km

Option 2: 20 km

Option 3: 15 km

Option 4: 16 km

Question : Two trains 100 metres and 95 metres long, respectively pass each other in 27 seconds when they run in the same direction and in 9 seconds when they run in opposite directions. The speeds of the two trains are:

Option 1: 44 km/hr, 22 km/hr

Option 2: 52 km/hr, 26 km/hr

Option 3: 36 km/hr, 18 km/hr

Option 4: 40 km/hr, 20 km/hr

Question : A car travels at the speed of 40 km/hr for the first hour and 60 km/hr for the next hour. What will be the average speed of the car?

Option 1: 60 km/hr

Option 2: 40 km/hr

Option 3: 50 km/hr

Option 4: 45 km/hr

Question : A bus travels 60 km in the first hour, 40 km in the second hour and 50 km in the third hour. What is the average speed of the bus?

Option 1: 60 km/hr

Option 2: 45 km/hr

Option 3: 50 km/hr

Option 4: 55 km/hr

Question : A car covers 3 successive 2 km stretches at speeds of 20 km/hr, 40 km hr, and 60 km/hr respectively. Its average speed is:

Option 1: 38.56 km/hr

Option 2: 42.12 km/hr

Option 3: 32.72 km/hr

Option 4: 40.50 km/hr