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Lesson 2: Solving Percent Problems — Practice Questions

  1. 1. Which proportion correctly translates the statement: "25 is 80% of what number?" Let 'n' represent the unknown number.

    • A. $\frac{n}{25} = \frac{80}{100}$
    • B. $\frac{25}{80} = \frac{n}{100}$
    • C. $\frac{80}{25} = \frac{n}{100}$
    • D. $\frac{25}{n} = \frac{80}{100}$
  2. 2. Which proportion correctly translates the statement: "90 is 150% of what number?" Let 'n' represent the unknown number.

    • A. $\frac{90}{n} = \frac{150}{100}$
    • B. $\frac{n}{90} = \frac{150}{100}$
    • C. $\frac{90}{150} = \frac{n}{100}$
    • D. $\frac{150}{90} = \frac{n}{100}$
  3. 3. Which proportion correctly translates the statement: 'What number is 35% of 250?'

    • A. $\frac{n}{250} = \frac{35}{100}$
    • B. $\frac{250}{n} = \frac{35}{100}$
    • C. $\frac{n}{35} = \frac{250}{100}$
    • D. $\frac{35}{n} = \frac{250}{100}$
  4. 4. Which proportion correctly translates the statement: 'What number is 75% of 920?'

    • A. $\frac{n}{920} = \frac{75}{100}$
    • B. $\frac{920}{n} = \frac{75}{100}$
    • C. $\frac{n}{75} = \frac{920}{100}$
    • D. $\frac{75}{n} = \frac{920}{100}$
  5. 5. Which proportion correctly translates the statement: "45 is 30% of what number?" Let 'n' represent the unknown number.

    • A. $\frac{45}{n} = \frac{30}{100}$
    • B. $\frac{n}{45} = \frac{30}{100}$
    • C. $\frac{45}{30} = \frac{n}{100}$
    • D. $\frac{30}{45} = \frac{n}{100}$
  6. 6. Which proportion correctly translates the statement: 'What number is 110% of 47?'

    • A. $\frac{n}{47} = \frac{110}{100}$
    • B. $\frac{47}{n} = \frac{110}{100}$
    • C. $\frac{n}{110} = \frac{47}{100}$
    • D. $\frac{110}{n} = \frac{47}{100}$
  7. 7. Which proportion correctly translates the statement: 'What number is 150% of 64?'

    • A. $\frac{n}{64} = \frac{150}{100}$
    • B. $\frac{64}{n} = \frac{150}{100}$
    • C. $\frac{n}{150} = \frac{64}{100}$
    • D. $\frac{150}{n} = \frac{64}{100}$
  8. 8. Which proportion correctly translates the statement: "What percent of 180 is 220?" Let 'p' represent the unknown percent.

    • A. $\frac{180}{220} = \frac{p}{100}$
    • B. $\frac{220}{180} = \frac{p}{100}$
    • C. $\frac{220}{p} = \frac{180}{100}$
    • D. $\frac{p}{220} = \frac{180}{100}$
  9. 9. Which proportion correctly translates the statement: "77 is 110% of what number?" Let 'n' represent the unknown number.

    • A. $\frac{n}{77} = \frac{110}{100}$
    • B. $\frac{77}{n} = \frac{110}{100}$
    • C. $\frac{77}{110} = \frac{n}{100}$
    • D. $\frac{110}{77} = \frac{n}{100}$
  10. 10. Which proportion correctly translates the statement: "What percent of 92 is 46?" Let 'p' represent the unknown percent.

    • A. $\frac{46}{92} = \frac{p}{100}$
    • B. $\frac{92}{46} = \frac{p}{100}$
    • C. $\frac{46}{p} = \frac{92}{100}$
    • D. $\frac{p}{46} = \frac{92}{100}$