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If a student increases his score from 50 to 70 in a test, what is the percentage
If a student increases his score from 50 to 70 in a test, what is the percentage increase in his score?
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If a student increases his score from 50 to 70 in a test, what is the percentage increase in his score?
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Percentage increase = ((70 - 50) / 50) * 100 = 40%.
Questions & Step-by-step Solutions
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Q: If a student increases his score from 50 to 70 in a test, what is the percentage increase in his score?
Solution:
Percentage increase = ((70 - 50) / 50) * 100 = 40%.
Steps: 5
Show Steps
Step 1: Identify the original score, which is 50.
Step 2: Identify the new score, which is 70.
Step 3: Calculate the difference between the new score and the original score: 70 - 50 = 20.
Step 4: Divide the difference by the original score: 20 / 50 = 0.4.
Step 5: Convert the result into a percentage by multiplying by 100: 0.4 * 100 = 40.
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