Question: In a class of students, there are three types of students: those who study science, those who study arts, and those who study commerce. If 40% study science, 30% study arts, and the rest study commerce, what percentage of students study commerce? (2023)
Options:
Correct Answer: 20%
Exam Year: 2023
Solution:
30% study arts and 40% study science, leaving 30% for commerce.