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If the speed of a stream is 5 km/hr and the speed of a boat in still water is 15 km/hr, what is the downstream speed of the boat?
  • a)
    20 km/hr
  • b)
    25 km/hr
  • c)
    30 km/hr
  • d)
    40 km/hr
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
If the speed of a stream is 5 km/hr and the speed of a boat in still w...
Downstream speed of the boat = 15 + 5 = 20 km/hr
Hence, Option A is correct.
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Community Answer
If the speed of a stream is 5 km/hr and the speed of a boat in still w...
Understanding the Problem:
Given:
Speed of the stream = 5 km/hr
Speed of the boat in still water = 15 km/hr

Downstream Speed Formula:
The downstream speed of the boat is the sum of the speed of the boat in still water and the speed of the stream.

Calculating Downstream Speed:
Downstream speed = Speed of boat in still water + Speed of stream
Downstream speed = 15 km/hr + 5 km/hr
Downstream speed = 20 km/hr
Therefore, the downstream speed of the boat is 20 km/hr. Hence, option 'A' (20 km/hr) is the correct answer.
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If the speed of a stream is 5 km/hr and the speed of a boat in still water is 15 km/hr, what is the downstream speed of the boat?a)20 km/hrb)25 km/hrc)30 km/hrd)40 km/hrCorrect answer is option 'A'. Can you explain this answer?
Question Description
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