**Direction:** Read the following information carefully and answer the following questions.

Statement I- There are 220 students studying in college A and college B. Students from 3 cities i.e Patna, Delhi and Mumbai study in these 2 colleges.

Statement II- Ratio of total number of students in college A and total number of students in college B is 6 : 5. Number of students of Mumbai who studies in college B is 30% of total number of students of college B.

Statement III- Number of students of Mumbai who studies in college B is 75% of number of students of Patna who studies in college A.

Statement IV- Number of students from Delhi who studies in college B is 62.5% of the number of students from Patna who studies in college A. Ratio of students from Patna in college B and number of students from Mumbai who studies in college A is 9 : 10.

This question was previously asked in

SBI Clerk Prelims: 13 July 2021 Shift 1 - Memory Based Paper

Option 2 : 30

From the Statement 1

Total student in college A and B = 220

Statement 2

Ratio of student in college A and B = 6 : 5

So, Number of student in college A = (220/11) × 6 = 120

Number of student in college B = 220 - 120 = 100

Number of student in college B from Mumbai = 30% of 100 = 30

Statement 3

Number of student of Mumbai in college B = 75% of Number of student of Patna in college A

Number of student of Patna in college A = (30/75) × 100 = 40

Statement 4

Number of students from Delhi in college B = 62.5% of the number of students from Patna in college A

Number of student from Delhi in college B = (5/8) × 40 = 25

Number of student from Patna in college B = 100 - 30 - 25 = 45

Ratio of students from Patna in college B and number of students from Mumbai who studies in college A = 9 : 10.

So, Number of student from Mumbai in college A = (45/9) × 10 = 50

Number of student from Delhi in college A = 120 - 40 - 50 = 30

Total student from Patna = 40 + 45 = 85

Total student from Delhi = 25 + 30 = 55

Required Difference = 85 - 55 = 30

**∴ Difference between total number of students from Patna to that of Delhi is 30**