Easy - 20 minutes is one-third of an hour, and the bus traveled 30km. Multiply that 30km by three and that gives the total distance it would travel in one hour. Answer is an average speed of 90kmh.
It can travel 45km in one hour, and 40 minutes is 2/3 of an hour, so it can travel 2/3 of 45km, which is 30km.
2 hours 50 minutes.
4.6ms
492km/h 08/60= .13333 .13333/64= 492.3km/h
200km
Your average speed is 44.3 miles per hour.
60 kph
46.64788km/h
1376 minutes.
16 km is not a speed (average or otherwise), it is a distance. It is therefore impossible to answer this question.
180 mph
540 kilometres per hour.
33.3333 miles
20 minutes
It can travel 45km in one hour, and 40 minutes is 2/3 of an hour, so it can travel 2/3 of 45km, which is 30km.
To find the average speed, divide the total distance traveled by the total time taken. In this case, 30 km / 48 min = 0.625 km/min. Therefore, the average speed is 0.625 kilometers per minute.
10miles