Comprehension Passage
Direction: Study the following Pie-diagram carefully to answer the questions that follow:
Total number of students = 3600
(Percentage of students enrolled in different Hobby classes in a school.)
What is the ratio of number of students enrolled in singing and dancing classes together to those enrolled in drama classes?
1
3 ∶ 1
2
1 ∶ 3
3
4 ∶ 7
4
3 ∶ 5