# MBA Logical Reasoning Questions & Answers – Venn Diagrams Set-II

Suman Kumari

Venn Diagram is an important topic which is often seen in all major MBA entrance exams such as CAT, MAT, XAT, NMAT, IIFT, among others. Venn Diagram comprise of 3-4 mark questions which test the mathematical aptitude of the aspirants.  Practise this exercise on Venn Diagram and test your aptitude before appearing for the exams:-

Directions (1 -4): Read the following information and answer the questions below.

In a coaching institute there are total 170 students and they studied different subject’s viz. Economics, Maths and English.

The ratio of students studying all 3 subjects to students studying atleast 2 subjects is 2:9. The ratio of students studying only one subject to students studying atleast 2 subjects is 8:9.

Number of students taking Maths only exceeds number of students of Economics only by 14.

Number of students studying English only exceeds number of students of Economics only by 12. Number of students studying English, Economics, and Maths is 90, 93, 97 respectively.

1. Number of students studying all three subjects is:

a) 18

b) 12

c) 20

d) None of these

2. Number of students studying no more than one subject is:

a) 76

b) 80

c) 60

d) can’t be determined

3. Number of students using exactly two subjects is:

a) 38

b) 55

c) 70

d) none of these

4. The number of students who are studying both Economics and Maths but not English is:

a) 23

b) 40

c) 36

d) data insufficient

MBA Logical Reasoning Questions & Answers – Venn Diagrams Set-I

Directions (5 - 7): Read the following information and answer the questions below.

50 students sing, 60 students do not dance and 25 students do both in a class of 100 students.

5. How many students neither sing nor dance?

a) 65

b) 35

c) 15

d) Cannot be determined

6. How many students only dance?

a) 10

b) 15

c) 20

d) Cannot be determined

7. How many students at least do either sing or dance?

a) 60

b) 50

c) 75

d) 65

Venn Diagrams: CAT Quantitative Aptitude

There are 120 employees who work for Airtel Pvt. Ltd. Mumbai, out of which 50 are women. Also:

I. 56 workers are married

III. 40 married workers are graduate of which 18 are men

V. 30 men are married.

8. How many unmarried women are graduate?

a) 22

b) 16

c) 0

d) can’t be determined

9. How many unmarried women are graduate?

a) 21

b) 24

c) 19

d) none of these

10. How many graduate men are married?

a) 18

b) 15

c) 13

d) none of these

Problems on Sets and Venn Diagrams: CAT Quantitative Aptitude

In this section, we will provide you the solutions to the above questions along with their explanation.

 Ques 1 Ques 2 Ques 3 Ques 4 Ques 5 Ques 6 Ques 7 Ques 8 Ques 9 Ques 10 c b c b b b d c b a

Explanation (1-4):

Explanation (5): Students who neither sing nor dance= Total students – Students who do sing alone, dance alone and do both

From Venn diagram, Students who neither sing nor dance= 100-(25+25+15)= 35

Explanation (5-7): (See the Venn diagram and explanation at the end of the questions)

Given,

Total students= 100

Number of students who sing= 50

Number of students who do not dance= 60

So, number of students who dance= 100-60= 40 (Total students- Students who do not dance)

Students who dance and sing= 25 (Overlapping portion in the Venn diagram)

Number of students who sing alone= 50-25=25 (Students who sing- Students who sing and dance)

Number of students who dance alone= 40-25=15 (Students who dance- Students who sing and dance)

Explanation (8): No one unmarried woman is graduate.

Explanation (9): Number of unmarried women = 120─ [28 + 4 + 12 + 12 + 22 + 18] = 24

Explanation (10): There are 18 graduate men who are married.

Explanation (8 - 10):

Total number of employees = 120

Women = 50

Men = 70

Married workers = 56

a → unmarried men who are not graduate

b → married women who are not graduate

c → unmarried women who are graduate

x → married men who are not graduate

y → married women who are graduate

z → unmarried men who are graduate

k → married men who are graduate

p → unmarried women who are not graduate

According to the given information the Venn diagram can be completed as given below.

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