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 : A boat goes 75 km upstream in 3 hours and 60 km downstream in 1.5 hours. The speed of the boat in still water is:

Option 1: 32.5 km/h

Option 2: 30 km/h

Option 3: 65 km/h

Option 4: 60 km/h

Question : A car, during its entire journey of 5 hours, travels the first 45 minutes at a certain speed, the next 75 minutes at a speed of 85 km/hr, and the last 3 hours at a speed of 70 km/hr. During its entire journey, the average speed of the car is found to be 73 km/hr. What is the speed (in km/hr) of the car during the first 45 minutes?

Option 1: 65

Option 2: 68

Option 3: 62

Option 4: 72

Question : A car covered the first 100 km at a speed of 50 km/h. It covered the next 140 km at a speed of 70 km/h. What is its average speed?

Option 1: 60 km/h

Option 2: 62 km/h

Option 3: 58 km/h

Option 4: 64 km/h

Question : A person travels a distance of 240 km, partly by train and the rest by bus. He takes $3 \frac{1}{2}$ hours if he travels 150 km by train and the rest by bus. If he travels 140 km by bus and the rest by train, he takes $3 \frac{2}{3}$ hours. What is the speed of the train?

Option 1: 80 km/hr

Option 2: 70 km/hr

Option 3: 75 km/hr

Option 4: 72 km/hr

Question : A car completed a journey of 400 km in $12\frac{1}{2}$ hours. The first $\frac{3}{4}$th of the journey was done at 30 km/hr. Calculate the speed for the rest of the journey.

Option 1: 45 km/hr

Option 2: 25 km/hr

Option 3: 40 km/hr

Option 4: 30 km/hr