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A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:
- a)5 km/hr
- b)4. 33 km/hr
- c)4 km/hr
- d)6 km/hr
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
A man travels a distance of 12 km at 3 km/hr, another distance of 12...
The Average speed= (Total Distance/Total Time taken)
Time taken to cover first 12 km= (Distance/Speed)= (12/3)= 4 hours
Time taken to cover second 12 km= 12/4= 3 hours
Time taken to cover last 12 km= 12/ 6= 2 hours
Hence, total time taken for whole journey= (4+3+2) hours= 9 hours
Therefore, the average speed of whole journey= (Total distance/total time)
Average speed of man= (36/9)= 4 km/hr
Most Upvoted Answer
A man travels a distance of 12 km at 3 km/hr, another distance of 12...
Solution:
To find out the average speed of the man for the whole journey, we can use the formula:
Average speed = total distance / total time
Let's calculate the total distance travelled by the man:
Total distance = 12 km + 12 km + 12 km = 36 km
Now, let's calculate the time taken by the man for each part of the journey:
Time taken for the first part of the journey = distance / speed = 12 km / 3 km/hr = 4 hours
Time taken for the second part of the journey = distance / speed = 12 km / 4 km/hr = 3 hours
Time taken for the third part of the journey = distance / speed = 12 km / 6 km/hr = 2 hours
Total time taken for the whole journey = 4 hours + 3 hours + 2 hours = 9 hours
Now, let's substitute the values in the formula to find out the average speed:
Average speed = total distance / total time = 36 km / 9 hours = 4 km/hr
Therefore, the correct option is (C) 4 km/hr.
To find out the average speed of the man for the whole journey, we can use the formula:
Average speed = total distance / total time
Let's calculate the total distance travelled by the man:
Total distance = 12 km + 12 km + 12 km = 36 km
Now, let's calculate the time taken by the man for each part of the journey:
Time taken for the first part of the journey = distance / speed = 12 km / 3 km/hr = 4 hours
Time taken for the second part of the journey = distance / speed = 12 km / 4 km/hr = 3 hours
Time taken for the third part of the journey = distance / speed = 12 km / 6 km/hr = 2 hours
Total time taken for the whole journey = 4 hours + 3 hours + 2 hours = 9 hours
Now, let's substitute the values in the formula to find out the average speed:
Average speed = total distance / total time = 36 km / 9 hours = 4 km/hr
Therefore, the correct option is (C) 4 km/hr.
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A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer?
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A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer?.
A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer?.
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A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A man travels a distance of 12 km at 3 km/hr, another distance of 12km at 4 km/hr and a third distance of 12km at 6 km/hr. His average speed for the whole journey is:a) 5 km/hrb) 4. 33 km/hrc) 4 km/hrd) 6 km/hrCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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