Problem
In a poll, 9 out of 25 students in Lydia's science class say they will vote for her for class president. In Lydia's history class, 4 out of 16 students say they will vote for her. Which is greater, the percent of students who will vote for Lydia in her science class or in her history class? (3) What percent of the students in Lydia's science class say they will vote for her? (1) Science class:
Solution
Step 1 ：\( \frac{9}{25} \times 100 = 36 \% \)
Step 2 ：\( \frac{4}{16} \times 100 = 25 \% \)
Step 3 ：36 \% > 25 \%
