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
- A man completes a journey in 11 h. He travels first half of the journey at the speed of 25 km/h and the second half at the speed of 30 km/h. Find the total distance of the journey.
- Heena covers a certain distance by train at 110 km/h and she returned to the starting point covering the same distance, driving a car at 50 km/h. Find her average speed for the whole journey.
- What is Ram's average speed if he goes from Point X to Point Y at 8 km/hr and returns from Point Y to Point X at 12 km/hr?
- Sachin covers a certain distance by car driving at 80 km/h and he returns to the starting point riding on a scooter at 50 km/h. Find his average speed for the whole journey up to 2 decimal places.
- An aeroplane flies along the sides of an equilateral triangle at the speed of 300 km/h, 200 km/h and 240 km/h, respectively. The average speed of the plane while flying around the triangle is:
- Wasim travels 455 km at 91 km/hr, the next 390 km at 78 km/hr and the next 476 km at 68 km/hr. What is his average speed (in km/hr) for the whole journey? (Round off your answer to two decimal places)
- If a motor car travels the first half of a distance at a speed of 30 km/h and the remaining half distance at a speed of 50 km/h, what will be its average speed?
A car travels the first 60 km at 45 km/hr and the next 90 km at 60 km/hr. What is the average speed for the entire journey?
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A scooter travels 40 km at 20 km/hr and returns 60 km at the same speed. What is the average speed?
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Important Questions from Average Speed
A person covers a certain distance at the speed of 60 kmph and returns to the starting point at a speed of 40 kmph . Find the average speed (in km/hour) of the person for the whole journey.
A train runs at a speed of 28 kmph for 4 hours and 30 kmph for 5 hours and the remaining 40 kms in one hour. What is the average speed per hour?
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?
