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Bus travel it's onward journey with a constant speed 30km/hr while it's return journey with a constant speed of 60km/hr the average speed for it's entire journey is a). 90km/hr b). 45km/hr c). 40km/hr d). 15km/hr?
Most Upvoted Answer
Bus travel it's onward journey with a constant speed 30km/hr while it'...
Onward Journey:
- Distance: Not mentioned
- Speed: 30 km/hr
- Time taken: Not mentioned
Return Journey:
- Distance: Same as the onward journey
- Speed: 60 km/hr
- Time taken: Not mentioned
Average Speed:
To find the average speed for the entire journey, we need to consider the total distance traveled and the total time taken.
Total Distance:
Since the onward and return journeys cover the same distance, we can consider the distance as 'd' for simplicity.
Time taken for onward journey:
Distance = Speed x Time
d = 30 km/hr x Time
Time = d/30
Time taken for return journey:
Distance = Speed x Time
d = 60 km/hr x Time
Time = d/60
Total Time taken:
The total time taken for the entire journey is the sum of the time taken for the onward and return journeys.
Total Time = (d/30) + (d/60)
= (2d + d)/60
= 3d/60
= d/20
Average Speed:
Average Speed = Total Distance / Total Time
Total Distance = 2d (since onward and return journeys cover the same distance)
Total Time = d/20
Average Speed = (2d) / (d/20)
= 40 km/hr
Therefore, the average speed for the entire journey is 40 km/hr (option c).
- Distance: Not mentioned
- Speed: 30 km/hr
- Time taken: Not mentioned
Return Journey:
- Distance: Same as the onward journey
- Speed: 60 km/hr
- Time taken: Not mentioned
Average Speed:
To find the average speed for the entire journey, we need to consider the total distance traveled and the total time taken.
Total Distance:
Since the onward and return journeys cover the same distance, we can consider the distance as 'd' for simplicity.
Time taken for onward journey:
Distance = Speed x Time
d = 30 km/hr x Time
Time = d/30
Time taken for return journey:
Distance = Speed x Time
d = 60 km/hr x Time
Time = d/60
Total Time taken:
The total time taken for the entire journey is the sum of the time taken for the onward and return journeys.
Total Time = (d/30) + (d/60)
= (2d + d)/60
= 3d/60
= d/20
Average Speed:
Average Speed = Total Distance / Total Time
Total Distance = 2d (since onward and return journeys cover the same distance)
Total Time = d/20
Average Speed = (2d) / (d/20)
= 40 km/hr
Therefore, the average speed for the entire journey is 40 km/hr (option c).
Community Answer
Bus travel it's onward journey with a constant speed 30km/hr while it'...
Correct answer is (b) option.
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Bus travel it's onward journey with a constant speed 30km/hr while it's return journey with a constant speed of 60km/hr the average speed for it's entire journey is a). 90km/hr b). 45km/hr c). 40km/hr d). 15km/hr?
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Bus travel it's onward journey with a constant speed 30km/hr while it's return journey with a constant speed of 60km/hr the average speed for it's entire journey is a). 90km/hr b). 45km/hr c). 40km/hr d). 15km/hr? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Bus travel it's onward journey with a constant speed 30km/hr while it's return journey with a constant speed of 60km/hr the average speed for it's entire journey is a). 90km/hr b). 45km/hr c). 40km/hr d). 15km/hr? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Bus travel it's onward journey with a constant speed 30km/hr while it's return journey with a constant speed of 60km/hr the average speed for it's entire journey is a). 90km/hr b). 45km/hr c). 40km/hr d). 15km/hr?.
Bus travel it's onward journey with a constant speed 30km/hr while it's return journey with a constant speed of 60km/hr the average speed for it's entire journey is a). 90km/hr b). 45km/hr c). 40km/hr d). 15km/hr? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Bus travel it's onward journey with a constant speed 30km/hr while it's return journey with a constant speed of 60km/hr the average speed for it's entire journey is a). 90km/hr b). 45km/hr c). 40km/hr d). 15km/hr? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Bus travel it's onward journey with a constant speed 30km/hr while it's return journey with a constant speed of 60km/hr the average speed for it's entire journey is a). 90km/hr b). 45km/hr c). 40km/hr d). 15km/hr?.
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