Answer:
B. 18/15 and 24/20
Explanation:
Two ratios are proportional if we can take one ratio, multiply the numerator and denominator for the same quantity and the result is the other ratio.
Therefore, the two ratios that are proportional are:
[tex]\frac{18}{15}\text{ and }\frac{24}{20}[/tex]
Because we can calculate the second proportion as:
[tex]\frac{18\cdot\frac{4}{3}}{15\cdot\frac{4}{3}}=\frac{24}{20}[/tex]
Therefore, the answer is B.
