The problem asks for the average speed of a bus over its entire journey. Average speed is calculated by dividing the total distance traveled by the total time taken.
Calculating Total Distance
The bus travels in two parts:
- First part: 50 km
- Second part: 70 km
Total distance = Distance (part 1) + Distance (part 2)
Total distance = 50 km + 70 km = 120 km
Calculating Total Time
The time taken for each part is:
- First part: 95 minutes
- Second part: 85 minutes
Total time = Time (part 1) + Time (part 2)
Total time = 95 min + 85 min = 180 minutes
Converting Time to Hours
Since the desired speed unit is km/h, we need to convert the total time from minutes to hours.
Total time in hours = \(\frac{180 \text{ min}}{60 \text{ min/hour}}\) = 3 hours
Calculating Average Speed
The formula for average speed is:
Average Speed = \(\frac{\text{Total Distance}}{\text{Total Time}}\)
Using the calculated values:
Average Speed = \(\frac{120 \text{ km}}{3 \text{ hours}}\)
Average Speed = 40 km/h
Conclusion
The average speed of the bus is 40 km/h.
Similar Questions
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Important Questions from Average Speed
Kapil travels for 4.5 hours at a speed of 50 km / h and 7.5 hours at a speed of 70 km / h. At the end of it, he finds that he covered only 6/7 of the total distance. At what average speed should he travel so that the remaining distance traveled in 5 hours?
A car has to cover 125 kms in 5 hours. What will be the average speed of the car if it has covered 90 kms in the first 3 hours?
A scooter from P to Q travels at 40 km/h and from Q to P at 30 km/h. What is the average speed of the scooter?
To cover a distance of 144 km in 3.2 hours what should be the average speed of the car in meters/second?
A cylindrical road roller having a diameter of 1.5 m moves at a speed of 3km/h while levelling a road. How much length of the road will be levelled in 45 minutes?
