Time to school: Distance / Speed = 4 km / 6 km/hr = 2/3 hour
Time to home: Distance / Speed = 4 km / 12 km/hr = 1/3 hour
Total distance: 4 km + 4 km = 8 km
Total time: 2/3 hour + 1/3 hour = 3/3 hour = 1 hour
Average speed: Total distance / Total time = 8 km / 1 hour = 8 km/hr
Therefore, the average speed is 8 km/hr.
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150 Mins English English150 Questions150 Marks150 Mins English English150 Questions150 Marks150 Mins EnglishThe average speed of a car, a bus and a train is 72 km per hour. If the speed of the bus is 48 km per hour, then average of the speeds of the train and the car is
I go to my school which is 5 km away from my home at a speed of 10 km/h and return home at the speed of 15 km/h. What is my average speed?
A man travels from Pune to Mumbai at 78 km/hr and returns at 91 km/hr. Find its average speed
Daksh travels 774 km at 86 km/hr, the next 567 km at 63 km/hr and the next 135 km at 27 km/hr. What is his average speed (in km/hr, rounded off to two decimal places) for the whole journey?
By increasing the speed of a car by 10 km/hour, the time of journey for a distance of 72 km is reduced by 36 minutes. The original speed of the car was:
A person drives 60 km at 30 km/hr, then 30 km at 60 km/hr, and 45 km at 90 km/hr. What is the average speed?
Tirupati travels 120 km at the speed of 48 km/hr and another 180 km at the speed 45 km/hr. What is Tirupati’s average speed (in km/hr) during the entire journey? (correct up to two decimal places)
Suman covers a certain distance by car, driving at 22 km/hr, and he returns to the starting point, riding on a scooter at a speed of 17 km/hr. Find the average speed for the whole journey.
A train travels the first 200 km of a journey at a speed of 100 km/h and the remaining 150 km at a speed of 75 km/h. What is the average speed (in km/h) of the train for the entire journey?
A man travels at 50 km/hr for 2 hours, the next at 40 km/hr for 2.5 hours and the next at 60 km/hr for 3 hours. What is his average speed (in km/hr, rounded off to two decimal places) for the whole journey?
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