Question : A car moves through 20 m in 3 minutes and the next 50 km at a speed of 100 km/hr. What is the approximate average speed of the car?

Option 1: 22.38 m/s

Option 2: 20 m/s

Option 3: 25.26 m/s

Option 4: 26.28 m/s

Question : The average speed of a car is 1500 metres/minute. A sprinter covers 200 metres in 30 seconds. What is the difference between the speed of the car and the speed of the sprinter?

Option 1: $\frac{54}{11}$ m/s

Option 2: $\frac{55}{3}$ m/s

Option 3: $\frac{65}{3}$ m/s

Option 4: $\frac{64}{3}$ m/s

Question : A car travels 120 km in 4 hours. Calculate its average speed in m/sec. [Give your answer correct to one decimal place.]

Option 1: 8.3 m/s

Option 2: 10.3 m/s

Option 3: 3.8 m/s

Option 4: 9.3 m/s

Question : If a person travels a certain distance at a speed of 10 km/h and returns through the same route at a speed of 20 km/h, then what will be the average speed during the whole journey?

Option 1: $\frac{40}{3}$ km/h

Option 2: 15 km/h

Option 3: $\frac{10}{3}$ km/h

Option 4: $\frac{20}{3}$ km/h

Question : The basic unit of speed of an object is ______.

Option 1: metre per km (m/km)

Option 2: metre per hour (m/h)

Option 3: metre per second (m/s)

Option 4: metre per minute (m/m)