Choose the correct answer:
1. Which instrument fitted in a vehicle measures and displays its speed in \(km/h\)?
2. A student says:
“A car travelled \(200\ km\), while a bus travelled only \(150\ km\). Therefore, the car must have had a greater average speed.”
Which additional information is necessary to determine whether the student's statement is correct?
“A car travelled \(200\ km\), while a bus travelled only \(150\ km\). Therefore, the car must have had a greater average speed.”
Which additional information is necessary to determine whether the student's statement is correct?