SAT MATH · Ratios & Percent · Foundations
Ratios & Percent: A number changes from math to math. What is the percent increase?
Part–whole, percent change, mixtures.
Try the problem
A number changes from to . What is the percent increase?
Hint and answer
Concept to use
Ratio splits: $\frac{a}{a+b}\cdot total$.
Hint
Divide the increase by 50.
Answer
30%
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