www.dge.tn.gov.in Directorate of Government Examination : 12th Std / Plus Two / +2 HSC Business Mathematics Model Question Paper

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Document Described : Business Mathematics Question Paper, Tamil Nadu Question Paper

BUSINESS MATHEMATICS
XII - STANDARD
MODEL QUESTION PAPER
(ENGLISH VERSION)
Time Allowed : 3 Hours Maximum Marks : 200
Section - A
Section A N.B. : (i) Answer all the 40 questions
(ii) Each question carries one mark
(iii) Choose and write the correct answer from the four choices given. 40 x 1 - 40
1) The Adjoint of 0 2 is
2) If AB = BA = | A | I then the matrix B is
(a) the inverse of A (b) the transpose of A
(c) the Adjoint of A (d) 2A

http://dge.tn.gov.in/schoolsyllabus/

English Medium Business Mathematics Question Paper Link :
http://dge.tn.gov.in/schoolsyllabus/...lass12BMEQ.pdf

Tamil Medium Business Mathematics Question Paper Link :
http://dge.tn.gov.in/schoolsyllabus/...lass12BMTQ.pdf

8) The sum of focal distances of any point on the ellipse is equal to length of its
(a) minor axis (b) semi minor axis (c) major axis (d) semi major axis
11) Given the demand equation p = -x + 10 ; (0 < x < 10) where p denotes the unit selling price and x denotes the number of units demanded of some product. Then the marginal revenue at x = 3 units is
(a) Rs. 5 (b) Rs. 10 (c) Rs. 4 (d) Rs. 30
12) If the rate of change of y with respect to x is 6 and x is changing at 4 units/sec, then the rate of change of y per sec is
(a) 24 units/sec (b) 10 units/sec (c) 2 units/sec (d) 22 units/sec
23. The solutioin of x dy + y dx = 0 is
a) x + y = c b) x2+ y2 = c c) xy = c d) y = cx
26. E =
a) 1 + D b) 1 - D c) Ñ + 1 d) Ñ - 1
27. When h = 1 D (x2) =
a) 2x b) 2x-1 c) 2x+1 d) 1
29. The mean and variance of a binomial distribution are
a) np, npq b) pq, npq c) np, Ö npq d) np, nq
30) If X is a poission variate with P (X = 1) = P (X = 2), the mean of the Poission variate is equal to
(a) 1 (b) 2 (c) -2 (d) 3
31) The normal distribution curve is
(a) Bimodal (b) Unimodal (c) Skewed (d) none of these
32) The standard error of the sample mean is
(a) Type I error
(b) Type II error
(c) Standard deviation of the sampling distribution of the mean
(d) Variance of the sampling distribution of the mean
33) If a random sample of size 64 is taken from a population whose standard deviation is equal to 32, then the standard error of the mean is
(a) 0.5 (b) 2 (c) 4 (d) 32
34) Probability of rejecting the null hypothesis when it is true is
(a) Type I error (b) Type II error
(c) Sampling error (d) Standard error
35) The Z-value that is used to establish a 95% confidence interval for the estimation of a population parameter is
(a) 1.28 (b) 1.65 (c)1.96 (d) 2.58
36) A time series consists of
(a) two components (b) three components (c) four components (d) none of these
37) Laspeyre’s index formula uses the weights of the
(a) base year quantities (b) current year quantities
(c) average of the weights of number of years (d) none of these
38) Variation due to assignable causes in the product occur due to
(a) faulty process (b) carelessness of operators
(c) poor quality of raw material (d) all the above
39) Control charts in statistical quality consist of
(a) three control lines (b) upper and lower control limits
(c) the level of process (d) all the above
40) The range of correlation co-efficient is
(a) 0 to (b) -10
(c) -1 to 1 (d) none of these

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Is there any change in XI standard books of the academic year 2012-2013 in Tamilnadu?