Question : To cover a distance of 234 km in 1.6 hours, what should be the average speed of the car in metres per second?

Option 1: 40.625 m/s

Option 2: 146.25 m/s

Option 3: 73.125 m/s

Option 4: 81.25 m/s

Question : To cover a distance of 216 km in 3.2 hours, what should be the average speed of a car in meters per second?

Option 1: 67.5 m/s

Option 2: 33.75 m/s

Option 3: 37.5 m/s

Option 4: 18.75 m/s

Question : Rajinder drives his car at an average speed of 40 km/hr to cover half of his total distance and thereafter he increases his speed to 60 km/hr. He covers his journey in 7 hours. What is the average speed of Rajinder on this journey?

Option 1: 52 km/hr

Option 2: 48 km/hr

Option 3: 50 km/hr

Option 4: 54 km/hr

Question : Aman decided to cover a distance of 12 km in 78 minutes. He decided to cover the initial two-thirds of the distance at 10 km/hr and the remaining at some different speed. Find the speed for the last one-third of the distance.

Option 1: 7.8 km/hr

Option 2: 8 km/hr

Option 3: 8.4 km/hr

Option 4: 9 km/hr

Question : Mohan completed a certain journey by car. If he covered 30% of the distance at 90 km/hr, 45% of the distance at 135 km/hr, and the remaining distance at 75 km/hr. His average speed (in km/hr) for the entire journey is:

Option 1: 100

Option 2: 90

Option 3: 105

Option 4: 95