Percent Exercises

Solve each percent problem.

1. What number is 25% of 30?

2. What number is 38% of 56?

3. What percent of 62 is 50? Round to the nearest tenth of a percent.

4. \(\frac{5}{7}\) is what percent of \(\frac{11}{12}\)? Round to the nearest tenth of a percent.

Source: Algebra2Go, https://www.saddleback.edu/faculty/Lperez/Algebra2Go/prealgebra/ratios/percentprobHW.pdf
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License.

1. \(x = 0.05 \cdot 30\)

   \(x = 7.5\)

2. \(x = 0.38 \cdot 56\)

   \(x = 21.28\)

3. \(x \cdot 62 = 50\)

   \(\frac{62x}{62} = \frac{50}{62}\)

   \(x = 0.806 = 80.6\%\)

4. \(\frac{5}{7} = x \cdot \frac{11}{12}\)

   \((\frac{12}{11}) (\frac{5}{7}) = (x)(\frac{11}{12}) (\frac{12}{11}) \)

   Multiply both sides by the reciprocal of \(\frac{11}{12}\)

   \(\frac{60}{77} = x\)

   \(0.779 = x\)

   \(77.9\% = x\)