IBPS SO Prelims Exam Model Paper 8

From statement I:
Total number of sections = 6
From statement II:
Total number of students in six sections = 150 × 6 = 900
From statement III:
Let the number of students in a school be N.
Total number of boys in school =

100N

180

=

5N

9

⇒ Total number of Girls in a school = N –

5N

9

=

4N

9

Required ratio = 4 : 5
∴ Only statement III is also sufficient to answer the question.