Quiznetik

Basic Numerical Skills | Set 1

1. George cantor is the

Correct : C. Father of Set Theory

2. Which method is also known as tabular method

Correct : A. Roster method

3. Which is also known as property method

Correct : B. Set builder method

4. A set with no elements is a

Correct : A. Null set

5. A set which is empty (or) consists of a definite number of elements is called

Correct : B. Finite set

6. Two set A and B are said to be equal if they have exactly the same elements and we write it

Correct : B. A = B

7. Two finite sets A and B are said to be equivalent set if cardinality of both sets are

Correct : A. Equal

8. Which of the following are examples of null set

Correct : C. Set of odd natural numbers divisible by 2

9. In the following state whether A=B

Correct : C. A= {a, b, c, d} B = {d, c, b, a}

10. A set ‘A’ is said to be a subset of a set B if every element of A is

Correct : B. Also an element of B

11. The Value of determinant a b c d is

Correct : A. ad – bc

12. a 0 b −a is =

Correct : C. a2

13. The Value of the determinant 5 6 3 4 is ______

Correct : A. 2

14. if the rows and columns of determinant are interchanged, the determinate value ………………….

Correct : A. Remains the same

15. A matrix with equal number of rows and colume is called

Correct : A. Square matrix

16. A matrix in which every element is Zero

Correct : D. Null

17. A square matrix in which all the laments except those in leading diagonal are zero is called ……………. Matrix

Correct : C. Diagonal

18. A………… is matrix which has only one column

Correct : A. Column

19. A square matrix in which elements in the diagonal are1 and rest is all zero is called

Correct : C. Identity matrix

20. If all elements in the matrix are zero then it is

Correct : D. Zero matrix

21. The sum of two matrices is a matrix obtained by adding ………………... elements of the given matrices

Correct : A. Corresponding

22. A (B+C) = AB + AC is a

Correct : C. Distributive law

23. The transpose of a matrix A is denoted by

Correct : A. At

24. A rectangular matrix does not possess

Correct : A. Inverse matrix

25. The solution of the equation 4 =2/3 x is …………..

Correct : A. 6

26. The equations x2 + 4 =0 is a …………

Correct : A. Quadratic equation

27. Equation ax2 + b = 0

Correct : A. Pure quadratic equation

28. The root of the eqn 3x2 -1 = 0 are ………

Correct : A. Irrational

29. x2 - 4 = 0 implies x =………..

Correct : C. ± 2

30. ………….. is one of the solutions to the equation 3x2 - 4x+1 =0

Correct : B. x = 1

31. The expression b2 - 4ac is called ………… of the quadratic eqn.

Correct : A. Discriminant

32. If the discriminant of a quadratic eqn is zero, the roots are

Correct : A. Real and equal

33. Quadratic eqn ax 2+ bx + c = 0 has equal roots if

Correct : C. b - 4ac = 0

34. Eqn y = 2x+5 has

Correct : D. Infinite solutions

35. X = 4 + 8y is

Correct : B. Linear

36. ………………. satisfies the eqn x +y +1 = 0

Correct : B. ( x = 1, y = - 2 )

37. Simultaneous eqns means a set of eqn in …….. unknowns

Correct : D. Any number

38. …………….. are mathematical statements that contains one or more derivatives

Correct : C. Equation

39. It is an eqn is one or more variables where each terms degrees is not more than I is

Correct : B. Linear eqn

40. …………… are a set of eqn containing multiple variables

Correct : A. Simultaneous eqn

41. Elimination by judicious multiplication is the other commonly used method to solve

Correct : C. Simultaneous linear eqn

42. The term “Quadratic” comes from

Correct : C. Quadratus

43. Quadratics eqn is an eqn in which the highest power of the variables is

Correct : B. 2

44. ………… means to rewrite the quadratic eqn into multiplication form

Correct : C. Factoring

45. The formula used for finding the roots of a quadratics eqn is known as

Correct : C. Quadratic formula

46. A quadratic eqn with real (or) complex coefficients has 2 solutions called

Correct : A. Roots

47. Break even point is

Correct : B. No profit no loss

48. At market equilibrium

Correct : A. Demand = Supply

49. R(x) ==C(x) denotes

Correct : C. BEP

50. A series obtained by adding a constant number to its preceding terms is

Correct : B. AP

51. A sequence is called infinite if it is not a

Correct : A. Finite sequence

52. Sequences following specific patterns are called

Correct : A. Progressions

53. The various numbers occurring in a sequence are called

Correct : C. Terms

54. A sequence containing finite number of terms is called

Correct : A. Finite sequence

55. tn in AP is

Correct : B. a +(n -1 ) d

56. to find sum of A.P. Sn =

Correct : A. n/2 [2a + (n -1)d]

57. Find the 7th term of series 1,4,7………………

Correct : B. 19

58. Find the 10th term of the series 4, 2, 0, -2………..

Correct : D. -14

59. If 2, 5, 8……….. is A.P the t 20 is

Correct : B. 59

60. d of the A.P. 4, -8, -20……..

Correct : C. -12

61. d of the A.P. 1,-1,-3,-5,…………….. is

Correct : C. -2

62. If the Nth term of an A.P. is 4n-1 then the d is

Correct : B. 4

63. Given the term in the sequence 1,3,7,15,31 next is …………….

Correct : B. 63

64. Find x if the number x ,7,28 from a GP

Correct : C. 7/4

65. The sum of an in finite G.P. is , where ‘r’ is

Correct : A. Numerically less than 1

66. Sum of n terms of a G.P is given by where r is

Correct : D. Numerically greater than 1

67. If a is the first term and r is the common ratio then the nth term of the GP is

Correct : C. arn-1

68. Find the common ratio of the following 9,6,4

Correct : C. 2/3

69. If a b c are in G P then b is

Correct : D. √

70. 9, 6, 4……………….. is a ……….

Correct : B. G.P

71. If 2, x , 8 are the successive terms of a GP.the value of x is

Correct : D. ± 4

72. Common ratio of the G.P. 1, 1/3,1/9,1/27 …………….is

Correct : B. 1/3

73. The A M of a and b is ……..

Correct : A. +2

74. The sum of the value of 1,2,………………20 is

Correct : B. 210

75. The sum n term of an A P with first term a and common difference d is

Correct : B. n/2 [2a +(n-1)d]

76. The sum of n terms of an A.P. whose first term and last term are knows as …

Correct : A. n/2 (a +1 )

77. The sum at the end of 2 years for 1000 at 10% p.a. compounded yearly

Correct : D. 1210

78. Simple interest for a sum of Rs 500 for 2 year at the rate of 8% p a is

Correct : C. 80

79. Compound interest for Rs 25,000/-at the rate of 12% p a for 5years is

Correct : C. 19058

80. The formula p (1+r/100)n gives ……….

Correct : A. The sum at the end of n year

81. The sum at the end of 4 years for Rs 100 at 10% p a C I payable quarterly is

Correct : C. 100(1.025)16

82. If is the population at the beginning of an years and the increase is r% p a then the population at the end of nth years is

Correct : A. P ( 1+ r/100)n

83. The time period after which the interest is added each time to form a new principle is called

Correct : C. Conversion period

84. CI is equal to

Correct : B. A – P

85. Statistics is applied in

Correct : D. All these

86. Statistic deals with

Correct : B. Quantitative information

87. The primary data are collected by

Correct : D. All these

88. ………………….. is not dimensional diagram

Correct : C. Pictograms

89. Ogives can be used to locate

Correct : D. All

90. A frequency distribution can be

Correct : D. Either

91. ……………. Is filled by the enumerator

Correct : B. Schedule

92. Statistics are

Correct : D. All these

93. Frequency distribution is

Correct : A. A table

94. Length of a class is

Correct : A. The difference between the UCB and LCB of that class

95. Tabulation is the presentation of data in

Correct : D. Rows and columns

96. Statistical results are

Correct : C. True on an average

97. The process of arranging data in groups according to similarities in character is called

Correct : B. Classification

98. Tally marks determine

Correct : D. Class frequency

99. Histogram is useful to determine

Correct : C. Mode

100. The graphical representation of a cumulative frequency distribution is called

Correct : B. Ogive