Question : The speed of two railway engines is in the ratio 5 : 4. If they move on parallel tracks in the same direction and if the slower engine is ahead of the faster engine by 8 km when the latter starts, then how far will the faster engine have to travel before it overtakes the slower one?

Option 1: 32

Option 2: 48

Option 3: 40

Option 4: 36

Question : On a straight road, a bus is 30 km ahead of a car travelling in the same direction. After 3 hours, the car is 60 km ahead of the bus. If the speed of the bus is 42 km/h, then find the speed of the car.

Option 1: 67 km/h

Option 2: 72 km/h

Option 3: 65 km/h

Option 4: 59 km/h

Question : If a truck moves at a constant speed of 30 km/hr for 1 kilometre and 45 km/hr for the next 1 kilometre. What is the average speed of the truck?

Option 1: 32 km/hr

Option 2: 36 km/hr

Option 3: 38 km/hr

Option 4: 34 km/hr

Question : A boy goes from home to school at a speed of 30 km/hr and returns back at a speed of 70 km/hr. What is his average speed for the journey?

Option 1: 42 km/hr

Option 2: 48 km/hr

Option 3: 38 km/hr

Option 4: 36 km/hr

Question : A person covers 28 km while walking at a speed of 8 km/hr. How much distance (in km) will he cover at the same time if he walks at a speed of 6 km/hr?

Option 1: 36

Option 2: 28

Option 3: 32

Option 4: 21

Question : During a journey of 120 km, Rahi drives the first 60 km at the speed of 60 km/hr, the next 30 km at 60 km/hr and the remaining 30 km at the speed of 30 km/hr. Determine the average speed.

Option 1: 48 km/hr

Option 2: 33.33 km/hr

Option 3: 50 km/hr

Option 4: 40 km/hr