Question 5

The following table presents data on the number of students related to their favorite subjects.

Class	Math	Science	Social Studies
A	$2a$	$10$	$20$
B	$5$	$15$	$3a$
C	$15$	$10$	$25$

The total number of students from all classes is $150$ .

Based on the information provided, which of the following relationships between quantity $P$ and $Q$ is correct?

$P$	$Q$
Percentage of total students with Social Studies as their favorite subject	$50\%$

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