If a student increases his score from 50 to 70 in a test, what is the percentage
Practice Questions
Q1
If a student increases his score from 50 to 70 in a test, what is the percentage increase in his score?
30%
40%
50%
20%
Questions & Step-by-Step Solutions
If a student increases his score from 50 to 70 in a test, what is the percentage increase in his score?
Correct Answer: 40%
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.
Percentage Increase – The percentage increase is calculated by taking the difference between the new score and the old score, dividing it by the old score, and then multiplying by 100.
