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If the length of a river is 240 km and it flows at an average speed of 4 km/h, h

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Question: If the length of a river is 240 km and it flows at an average speed of 4 km/h, how long will it take for the river to flow from its source to the mouth? (2021)

Options:

  1. 60 hours
  2. 70 hours
  3. 80 hours
  4. 90 hours

Correct Answer: 60 hours

Exam Year: 2021

Solution: 

Time = Distance / Speed = 240 km / 4 km/h = 60 hours.

If the length of a river is 240 km and it flows at an average speed of 4 km/h, h

Practice Questions

Q1
If the length of a river is 240 km and it flows at an average speed of 4 km/h, how long will it take for the river to flow from its source to the mouth? (2021)
  1. 60 hours
  2. 70 hours
  3. 80 hours
  4. 90 hours

Questions & Step-by-Step Solutions

If the length of a river is 240 km and it flows at an average speed of 4 km/h, how long will it take for the river to flow from its source to the mouth? (2021)
  • Step 1: Identify the total length of the river, which is 240 km.
  • Step 2: Identify the average speed of the river, which is 4 km/h.
  • Step 3: Use the formula for time, which is Time = Distance / Speed.
  • Step 4: Plug in the values: Time = 240 km / 4 km/h.
  • Step 5: Calculate the time: 240 divided by 4 equals 60.
  • Step 6: Conclude that it will take 60 hours for the river to flow from its source to the mouth.
  • Distance, Speed, and Time Relationship – This question tests the understanding of the fundamental relationship between distance, speed, and time, which is expressed by the formula: Time = Distance / Speed.
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