Objective Questions and Answers of MBA: Business Mathematics 8

Subject: Objective Questions and Answers of MBA: Business Mathematics 8

**Part 8: Objective questions and answers of Business Mathematics**

**Q1. If f(x) = log [(1 + x)/(1-x), then f (2x )/(1 + x^2 ) is equal to**

a) 2 f (x)

b) {f(x)}^2

c) {f(x)}^3

d) 3 f(x)

**Q2. Evaluate f(1) + f(2) + f(3) + … + f(25)**

a) -26

b) None of these

c) -24

d) -22

**Q3. { (a, b): a^2 +b^2 = 1} on the set s has the following relation**

a) Symmetric

b) Reflexive and transitive

c) None

d) Reflexive

**Q4. Insert a.m.'s (arithmetic mean) between 7 and 71 in such a way that the 5th a.m. is 27. The number of a.m.s are**

a) 12

b) 17

c) 15

d) 51

**Q5. If log 27 = 1.431, then the value of log 9 is:**

a) 0.934

b) 0.958

c) 0.945

d) 0.954

**Q6. If a = cos θ + i sin θ, then (1 + a) / (1 – a) =**

a) Cot θ / 2

b) Cot θ

c) I cot θ / 2

d) I tan θ / 2

**Q7. If n arithmetic means are inserted between 1 and 31, such that the ratio of the first mean and the nth mean is 3 : 29, then the value of n is**

a) 10

b) 12

c) 13

d) 14

**Q8. Cube root of 5 x cube root of 7 is**

a) Cube root of 35

b) Cube root of 12

c) Cube root of 7 / 5

d) Cube root of 2

**Q9. The greatest possible number of points of intersection of 8 straight lines and 4 circles is**

a) 32

b) 64

c) 76

d) 104

**Q10. How many numbers greater than 10 lakhs be formed from 2, 3, 0, 3, 4, 2, 3?**

a) 420

b) 360

c) 400

d) 300

**Q11. In pert the span of time between the optimistic and pessimistic time estimates of an activity is ______________**

a) 3σ

b) 12σ

c) 6σ

d) None of the above.

**Q12. In a survey conducted in patna, it was found that 3/4ths of town owns color t.v., 85 % of the people own refrigerators and every 4 in 5 in the town own music systems, what is the minimum percentage of people who have all the three?**

a) 30 %

b) 55 %

c) 40 %

d) None of these

**Q13. Find the domain of the function y = f(x) which is defined as f(x) = (1 / √{x- [x]}) [x] is the greatest integer function**

a) X is any real number other than an integer

b) And real value of x

c) All natural numbers

d) None of these

**Q14. A relation R ={(1,1), (1,2)}ON a ={1,2,3}. A minimum number of elements required in R so that the enlarged relation becomes an equilance relation**

a) {(2,2), (3,3)}

b) {(2,1) , (3,1), (3,3)}

c) {(2,2), (2,1), }

d) {(2,2), (3,3), (2,1)}

**Q15. 55 cows can graze a field in 16 days. How many cows will graze the same field in 10 days?**

a) 84 cows

b) 34 cows

c) 88 cows

d) 44 cows

**Q16. The argument of (1 – i) / (1 + i) is**

a) π / 2

b) π / 2

c) π 3 / 2

d) 5 π / 2

**Q17. (- 3 / 2) + (5 / 4) – (- 7 / 4)**

a) -2

b) 2

c) 7/4

d) 3 / 2

**Q18. The union of infinite number of open sets is**

a) An open set

b) A closed set

c) Need not be an open set

d) Not a set

**Q19. In how many ways 4 men and 4 women can be seated in a row so that men and women are alternate?**

a) 28

b) 36

c) 4! 4!

d) 2.4! 4!

**Q20. Find the 5th term in the expansion ( 1 -2x )^-1**

a) 15×3

b) 16×4

c) 17×5

d) 14×6

**Part 8: Objective questions and answers of Business Mathematics**

Q1. Answer a

Q2. Answer b

Q3. Answer a

Q4. Answer b

Q5. Answer d

Q6. Answer c

Q7. Answer d

Q8. Answer a

Q9. Answer c

Q10. Answer b

Q11. Answer b

Q12. Answer c

Q13. Answer a

Q14. Answer d

Q15. Answer b

Q16. Answer a

Q17. Answer a

Q18. Answer a

Q19. Answer d

Q20. Answer b

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