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A river's flow is measured at 50 m³/s. If the river narrows, causing the flow to

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Question: A river\'s flow is measured at 50 m³/s. If the river narrows, causing the flow to increase to 75 m³/s, what is the percentage increase in flow?

Options:

  1. 50%
  2. 25%
  3. 30%
  4. 40%

Correct Answer: 50%

Solution: 

Percentage increase = ((New flow - Old flow) / Old flow) × 100 = ((75 - 50) / 50) × 100 = 50%.

A river's flow is measured at 50 m³/s. If the river narrows, causing the flow to

Practice Questions

Q1
A river's flow is measured at 50 m³/s. If the river narrows, causing the flow to increase to 75 m³/s, what is the percentage increase in flow?
  1. 50%
  2. 25%
  3. 30%
  4. 40%

Questions & Step-by-Step Solutions

A river's flow is measured at 50 m³/s. If the river narrows, causing the flow to increase to 75 m³/s, what is the percentage increase in flow?
  • Step 1: Identify the old flow rate of the river, which is 50 m³/s.
  • Step 2: Identify the new flow rate of the river, which is 75 m³/s.
  • Step 3: Calculate the difference between the new flow and the old flow: 75 - 50.
  • Step 4: The difference is 25 m³/s.
  • Step 5: Divide the difference by the old flow to find the increase relative to the old flow: 25 / 50.
  • Step 6: The result of the division is 0.5.
  • Step 7: To find the percentage increase, multiply the result by 100: 0.5 × 100.
  • Step 8: The final result is 50%, which is the percentage increase in flow.
  • Flow Rate – Understanding the concept of flow rate in a river and how it can change with varying conditions.
  • Percentage Increase – Calculating the percentage increase using the formula for percentage change.
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