Sample quiz on ratios and proportions
Main home here.

  1. What is a ratio?
    a special number that has rational factors
    a comparison of two quantities with the same units
    addition of two quantities with the same units
    addition of two quantities with different units
  2. An equation with a ratio on each side is called $\cdots$?
    proportion
    relation
    product
    quotient
  3. Is it true that a ratio can also be expressed as a fraction?
    No; they are two different things
    Yes; it is always possible
    Yes, but only for even numbers
    Not sure to be honest
  4. Express the ratio $12:15$ in its simplest form.
    $4:15$
    $12:5$
    $5:4$
    $4:5$
  5. A class consists of $10$ boys and $14$ girls. What is the ratio of girls to boys?
    $14:5$
    $5:7$
    $7:5$
    $14:24$
  6. If $2:5=x:15$, then the value of $x$ is $\cdots$?
    $6$
    $5$
    $3$
    $2$
  7. A bag contains $6$ red balls and $9$ white balls. The ratio of white balls to the total number of balls is $\cdots$?
    $6:9$
    $9:6$
    $6:15$
    $3:5$.
  8. Express the ratio $14:56$ as a fraction in its lowest terms.
    $\frac{1}{4}$
    $\frac{4}{1}$
    $\frac{1}{3}$
    $\frac{1}{5}$
  9. In the proportion $x:13=10:52$, the value of $x$ is $\cdots$?
    $40$
    $20$
    $2.5$
    $25$
  10. In the proportion $12:15=3:y$, the value of $y$ is $\cdots$?
    $60$
    $48$
    $37.5$
    $3.75$