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A student improved his score from 70 to 84 in a test. What is the percentage inc

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Question: A student improved his score from 70 to 84 in a test. What is the percentage increase in his score?

Options:

  1. 15%
  2. 20%
  3. 25%
  4. 30%

Correct Answer: 25%

Solution: 

Percentage increase = ((84 - 70) / 70) * 100 = 20%.

A student improved his score from 70 to 84 in a test. What is the percentage inc

Practice Questions

Q1
A student improved his score from 70 to 84 in a test. What is the percentage increase in his score?
  1. 15%
  2. 20%
  3. 25%
  4. 30%

Questions & Step-by-Step Solutions

A student improved his score from 70 to 84 in a test. What is the percentage increase in his score?
Correct Answer: 20%
  • Step 1: Identify the original score, which is 70.
  • Step 2: Identify the new score, which is 84.
  • Step 3: Calculate the difference between the new score and the original score: 84 - 70 = 14.
  • Step 4: Divide the difference by the original score: 14 / 70.
  • Step 5: Calculate the result of the division: 14 / 70 = 0.2.
  • Step 6: Convert the result to a percentage by multiplying by 100: 0.2 * 100 = 20%.
  • Step 7: The percentage increase in the score is 20%.
  • Percentage Increase – The calculation of how much a value has increased in relation to its original value, expressed as a percentage.
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