IBPS SO Prelims Exam Model Paper 7

Given:
Total no. of students in college E = 200
Ratio of boys and girls in college E = 3 : 5
Total no. of students in college D = 500
Ratio of boys and girls in college D = 4 : 1
Calculation:
Number of boys in college E = (

3

8

) × 200
⇒ 3 × 25 = 75
Number of boys in college D = (

4

5

) × 500
⇒ 4 × 100 = 400
∴ Total number of boys in college D and E is 75 + 400 = 475