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A man can row 6 km/h in still water. If the speed of the current is 2 km/h, it takes 3 hrs more in upstream than in the downstream for the same distance. The distance is
- a)30 km
- b)24 km
- c)20 km
- d)32 km
- e)None of these
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A man can row 6 km/h in still water. If the speed of the current is 2 ...
Let's solve this problem step by step:
Given information:
- The man's rowing speed in still water is 6 km/h.
- The speed of the current is 2 km/h.
- It takes 3 hours more to row upstream than downstream for the same distance.
Let's assume the distance between the starting and ending points is 'd' km.
Speed of boat downstream:
When the boat is rowing downstream, it gets the additional speed of the current. So, the effective speed of the boat downstream is 6 km/h + 2 km/h = 8 km/h.
Speed of boat upstream:
When the boat is rowing upstream, it has to overcome the speed of the current. So, the effective speed of the boat upstream is 6 km/h - 2 km/h = 4 km/h.
Time taken to row downstream:
We can calculate the time taken to row downstream using the formula: Time = Distance / Speed.
So, the time taken to row downstream is d km / 8 km/h = d/8 hours.
Time taken to row upstream:
We can calculate the time taken to row upstream using the same formula: Time = Distance / Speed.
So, the time taken to row upstream is d km / 4 km/h = d/4 hours.
Given that it takes 3 hours more to row upstream than downstream, we can write the equation:
(d/4) - (d/8) = 3
Simplifying the equation, we get:
(2d - d) / 8 = 3
d/8 = 3
d = 24 km
Therefore, the distance between the starting and ending points is 24 km.
Hence, the correct answer is option 'B' 24 km.
Given information:
- The man's rowing speed in still water is 6 km/h.
- The speed of the current is 2 km/h.
- It takes 3 hours more to row upstream than downstream for the same distance.
Let's assume the distance between the starting and ending points is 'd' km.
Speed of boat downstream:
When the boat is rowing downstream, it gets the additional speed of the current. So, the effective speed of the boat downstream is 6 km/h + 2 km/h = 8 km/h.
Speed of boat upstream:
When the boat is rowing upstream, it has to overcome the speed of the current. So, the effective speed of the boat upstream is 6 km/h - 2 km/h = 4 km/h.
Time taken to row downstream:
We can calculate the time taken to row downstream using the formula: Time = Distance / Speed.
So, the time taken to row downstream is d km / 8 km/h = d/8 hours.
Time taken to row upstream:
We can calculate the time taken to row upstream using the same formula: Time = Distance / Speed.
So, the time taken to row upstream is d km / 4 km/h = d/4 hours.
Given that it takes 3 hours more to row upstream than downstream, we can write the equation:
(d/4) - (d/8) = 3
Simplifying the equation, we get:
(2d - d) / 8 = 3
d/8 = 3
d = 24 km
Therefore, the distance between the starting and ending points is 24 km.
Hence, the correct answer is option 'B' 24 km.
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Community Answer
A man can row 6 km/h in still water. If the speed of the current is 2 ...
Let the required distance be x km. As per the question, Timeupstream – Timedownstream = 3
⇒ x = 3 × 8 = 24 km.
Hence, option B is correct.
⇒ x = 3 × 8 = 24 km.
Hence, option B is correct.
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Question Description
A man can row 6 km/h in still water. If the speed of the current is 2 km/h, it takes 3 hrs more in upstream than in the downstream for the same distance. The distance isa)30 kmb)24 kmc)20 kmd)32 kme)None of theseCorrect answer is option 'B'. Can you explain this answer? for Banking Exams 2026 is part of Banking Exams preparation. The Question and answers have been prepared according to the Banking Exams exam syllabus. Information about A man can row 6 km/h in still water. If the speed of the current is 2 km/h, it takes 3 hrs more in upstream than in the downstream for the same distance. The distance isa)30 kmb)24 kmc)20 kmd)32 kme)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Banking Exams 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A man can row 6 km/h in still water. If the speed of the current is 2 km/h, it takes 3 hrs more in upstream than in the downstream for the same distance. The distance isa)30 kmb)24 kmc)20 kmd)32 kme)None of theseCorrect answer is option 'B'. Can you explain this answer?.
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