The 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
Given:
The average speed of a car, a bus, and a train is 72 km/h.
Speed of the bus = 48 km/h.
Find the average speed of the car and the train.
Formula Used:
Average =
Solution:
Average speed of 3 vehicles:
Total speed = 3 × 72 = 216 km/h
Speed of bus = 48 km/h
So,
Speed of car + speed of train = 216 - 48 = 168
Average speed of car and train:
= 84 km/h
Alternate Solution (Exam Trick):
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Suggested Test Series
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A car covers three different segments of a journey: it travels 40 km at a speed of 60 km/hr, then 50 km at a speed of 50 km/hr and finally 60 km at a speed of 40 km/hr. What is the car's average speed (rounded off to one decimal place) for the entire trip?
A car travels a distance of 120 km in 2 hours. What is its speed?
A cyclist travels 150 km in 5 hours and then another 90 km in 3 hours. What is the average speed of the cyclist for the entire journey?
A person travels 60 km by car at a speed of 50 km/hr, then 80 km by bus at a speed of 40 km/hr and finally 100 km by train at a speed of 80 km/hr. What is the average speed (rounded off two decimal places) of the person for the entire trip?
What is the average speed of a bus which covers half the distance at a speed of 72 km/hr and the other half at a speed of 90 km/hr?
A bus travels 120 km at 60 km/h and 180 km at 90 km/h. What is the average speed for the entire journey ?
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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?
