A test score increases from 60 to 90. What is the percent increase?

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Multiple Choice

A test score increases from 60 to 90. What is the percent increase?

Explanation:
Percent increase is found by comparing the amount added to the original amount. The score goes from 60 to 90, so the increase is 90 − 60 = 30. Now compare that increase to the original 60: 30 ÷ 60 = 0.5. Turn that into a percent by multiplying by 100, giving 50%. So the score increased by 50% (adding half of the original score).

Percent increase is found by comparing the amount added to the original amount. The score goes from 60 to 90, so the increase is 90 − 60 = 30. Now compare that increase to the original 60: 30 ÷ 60 = 0.5. Turn that into a percent by multiplying by 100, giving 50%. So the score increased by 50% (adding half of the original score).

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