# 140+ Basic Numerical Skills Solved MCQs

1.

## George cantor is the

A. Father of Mathematics
B. Father of statistics
C. Father of Set Theory
D. None
Answer» C. Father of Set Theory
2.

## Which method is also known as tabular method

A. Roster method
B. Set builder form
C. Both a and b
D. None
3.

## Which is also known as property method

A. Roster method
B. Set builder method
C. Both a and b
D. None
4.

A. Null set
B. Finite set
C. Infinite set
D. None
5.

A. Null set
B. Finite set
C. Infinite set
D. None
6.

A. A ≠ B
B. A = B
C. A € B
D. None
7.

A. Equal
B. Not equal
C. Similar
D. none
8.

## Which of the following are examples of null set

A. Set of even prime numbers
B. Set of letters in English alphabets
C. Set of odd natural numbers divisible by 2
D. All the above
Answer» C. Set of odd natural numbers divisible by 2
9.

## In the following state whether A=B

A. A= {4,8,12,16} B = {8,4,16,18}
B. A= {x : x is a multiple of 10 } B= {10, 15, 20, 25 ….}
C. A= {a, b, c, d} B = {d, c, b, a}
D. None
Answer» 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

A. Also an element of A
B. Also an element of B
C. Not an element of B
D. Not an element of A
Answer» B. Also an element of B
11.

B. ab – cd
C. bd – ac
12.

A. ab
B. 0
C. a2
D. b
13.

A. 2
B. - 2
C. 38
D. - 38
14.

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

A. Remains the same
B. The sign of the value is changed
C. Becomes zero
D. None
15.

A. Square matrix
B. Column
C. Row
D. none
16.

A. Unit
B. Diagonal
C. Scalar
D. Null
17.

A. Zero
B. Null
C. Diagonal
D. None
18.

A. Column
B. Row
C. Diagonal
D. Square
19.

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

A. Diagonal matrix
B. Zero matrix
C. Identity matrix
D. none
20.

## If all elements in the matrix are zero then it is

A. Diagonal matrix
B. Square matrix
C. Identity matrix
D. Zero matrix
21.

A. Corresponding
B. Opposite
C. Same
D. none
22.

## A (B+C) = AB + AC is a

A. Associative law
B. Cumulative law
C. Distributive law
D. Corresponding law
23.

A. At
B. A
C. A(x)
D. None
24.

## A rectangular matrix does not possess

A. Inverse matrix
B. Square matrix
C. Zero matrix
D. None
25.

A. 6
B. 12
C. 8
D. 16
26.

## The equations x2 + 4 =0 is a …………

B. Cubic equation
C. Simple equation
D. None
27.

D. None
28.

A. Irrational
B. Imaginary
C. Rational
D. integer
29.

A. 2
B. -2
C. ± 2
D. None
30.

A. x = -1
B. x = 1
C. x = 2
D. x = 0
31.

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

A. Discriminant
B. Roots
C. Characteristics
D. solution
32.

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

A. Real and equal
B. Real and unequal
C. Complex
D. Nothing
33.

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

A. b - 4ac < 0
B. b - 4ac > 0
C. b - 4ac = 0
D. b - 4ac = 1
Answer» C. b - 4ac = 0
34.

## Eqn y = 2x+5 has

A. No solution
B. One solution
C. 3 solutions
D. Infinite solutions
35.

B. Linear
C. Exponential
D. none
36.

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

A. (x = 0 , y = 0 )
B. ( x = 1, y = - 2 )
C. ( x= 0 , y = 1)
D. (x = -2, y = 2)
Answer» B. ( x = 1, y = - 2 )
37.

A. One
B. Two
C. Three
D. Any number
38.

A. Sets
B. Linear eqn
C. Equation
D. None
39.

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

A. Simultaneous eqn
B. Linear eqn
C. Eqn
D. none
40.

## …………… are a set of eqn containing multiple variables

A. Simultaneous eqn
B. Linear eqn
C. Eqn
D. none
41.

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

A. Simultaneous eqn
B. Linear eqn
C. Simultaneous linear eqn
D. none
42.

D. None
43.

A. 1
B. 2
C. 3
D. None
44.

## ………… means to rewrite the quadratic eqn into multiplication form

A. Graphing
B. Completing the square
C. Factoring
D. None
45.

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

A. Completing the square
B. Factoring
D. none
46.

A. Roots
B. Eqn
C. Formula
D. None
47.

## Break even point is

A. No sales no production
B. No profit no loss
C. Above targeted profit
D. None
Answer» B. No profit no loss
48.

## At market equilibrium

A. Demand = Supply
B. Profit = Loss
C. Sales = forecast
D. None
49.

## R(x) ==C(x) denotes

A. Profit function
B. Market equilibrium
C. BEP
D. None
50.

A. GP
B. AP
C. GP or AP
D. None
51.

## A sequence is called infinite if it is not a

A. Finite sequence
B. AP
C. Progressions
D. None
52.

## Sequences following specific patterns are called

A. Progressions
B. finite sequence
C. Infinite sequence
D. None
53.

A. Progressions
B. Elements
C. Terms
D. None
54.

## A sequence containing finite number of terms is called

A. Finite sequence
B. Infinite
C. Terms
D. none
55.

## tn in AP is

A. a + (n -1 ) 2d
B. a +(n -1 ) d
C. a + (d -1 ) n
D. none
Answer» B. a +(n -1 ) d
56.

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

A. n/2 [2a + (n -1)d]
B. n/2 [2a + d]
C. n/2 [2a +(n-1)]
D. None
Answer» A. n/2 [2a + (n -1)d]
57.

A. 22
B. 19
C. 16
D. 25
58.

A. -12
B. -10
C. -8
D. -14
59.

A. 60
B. 59
C. 58
D. None
60.

A. -4
B. 12
C. -12
D. -8
61.

A. 1
B. -1
C. -2
D. 2
62.

A. 3
B. 4
C. 1
D. 0
63.

A. 62
B. 63
C. 46
D. 66
64.

A. 4
B. 0
C. 7/4
D. 4/7
65.

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

A. Numerically less than 1
B. Equal to 1
C. ± 1
D. Any value
Answer» A. Numerically less than 1
66.

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

A. Greater than 1
B. Equal to 1
C. Less than 1
D. Numerically greater than 1
Answer» D. Numerically greater than 1
67.

A. a(1-r)
B. a (1 –rn)
C. arn-1
D. − 1 − 1
68.

A. 3
B. 2
C. 2/3
D. none
69.

A. ac
B. +2
C. a+ c
D.
70.

A. A.P
B. G.P
C. A.P or G.P
D. None
71.

A. 5
B. 4
C. -4
D. ± 4
72.

A. 3
B. 1/3
C. 1/6
D. 6
73.

A. +2
B. ab
C.
D. a + b
74.

A. 500
B. 210
C. 420
D. 520
75.

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

A. Na
B. n/2 [2a +(n-1)d]
C. A + (n-1)d
D. − 1 − 1
76.

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

A. n/2 (a +1 )
B. n/2 ( a +nd)
C. n/2 ( 2a +1n )
D. None
Answer» A. n/2 (a +1 )
77.

A. 100
B. 210
C. 1100
D. 1210
78.

A. 580
B. 420
C. 80
D. 16
79.

A. 17623
B. 44058
C. 19058
D. 15000
80.

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

A. The sum at the end of n year
B. CI at the end of n years
C. Present value
D. None
Answer» A. The sum at the end of n year
81.

A. 100(1.1)3
B. 100(1.025)4
C. 100(1.025)16
D. 100(1.1)4
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

A. P ( 1+ r/100)n
B. P + ( n +1 ) pr / 100
C. P + (n -1) pr / 100
D. Pnr / 100
Answer» 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

A. Normal period
B. Semi annual period
C. Conversion period
D. None
84.

A. A + P
B. A – P
C. A X P
D. None
85.

## Statistics is applied in

A. Economics
C. Commerce and Industry
D. All these
86.

## Statistic deals with

A. Qualitative information
B. Quantitative information
C. Both
D. None
87.

A. Interview
B. Observation
C. Questionnaire
D. All these
88.

A. Cubes
B. Rectangles
C. Pictograms
D. Circles
89.

A. Median
B. Quartiles
C. Deciles
D. All
90.

A. Dicrete
B. Continuous
C. Neither
D. Either
91.

## ……………. Is filled by the enumerator

A. Questionnaire
B. Schedule
C. Questionnaire or Schedule
D. All
92.

## Statistics are

A. Aggregate of facts
B. Numerically expressed
C. Systematically collected
D. All these
93.

## Frequency distribution is

A. A table
B. A variable
C. Total Frequency
D. Class Intervals
94.

## Length of a class is

A. The difference between the UCB and LCB of that class
B. The difference between the UCL and LCL of that class
C. a) or b)
D. Both a) & d)
Answer» A. The difference between the UCB and LCB of that class
95.

## Tabulation is the presentation of data in

A. Groups
B. Rows
C. Columns
D. Rows and columns
96.

## Statistical results are

A. Absolutely correct
B. Not true
C. True on an average
D. Universally true
Answer» C. True on an average
97.

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

A. Tabulation
B. Classification
C. Tabulation or classifaction
D. None
98.

## Tally marks determine

A. Class width
B. Class boundary
C. Class Limit
D. Class frequency
99.

A. Mean
B. Median
C. Mode
D. All these
100.

A. Histogram
B. Ogive
C. Both
D. None