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ECAT Mathematics Online Test MCQs With Answers
Question # 1
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360°
180°
90°
None of these
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Question # 2
Only one of the root of ax2 + bx + c =0, a≠ 0 is zero if
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c = 0
c = 0,b≠ 0
b = 0,c = 0
b = 0,c≠ 0
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Question # 3
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At
-A
A
A-1
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Question # 4
The 60th part of one minute is called
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Degree
Second
Radiam
None of these
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Question # 5
If a = {2m/2m < 9 ,m€ p} , the (n A) =
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{2,3,4,5,6,7,8}
{2,4,6,8............16}
{ 4, 6}
{2,3,5,7}
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Question # 6
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Question # 7
A bag contains 3 white, 4 black and 2 red balls. If 2 balls are drawn at random, then the probability that both the ball are white is
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1/18
1/12
1/36
None of these
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Question # 8
An integer is chosen at random from the number ranging from 1 to 50. the probability that the integer chosen is a multiple of 2 or 3 or 10 is
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3 / 10
5 / 10
7 / 10
9 / 10
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Question # 9
If C={p/p < 18, p is a prime number}, then C =
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{2,3,4,.........17}
{2,4,6,8................16}
{1,3,5,7,9,11,13,15,17}
{3,6,9,12,15}
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Question # 10
If a and b are real numbers then a+b is also real number this law is called
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associative law of addition
closure law of addition
Distributive law of addition
Commutative law of addition
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Question # 11
The general term in the expansion of (a+x)n is
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(r-1)th term
(r+1)th term
rth term
none
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Question # 12
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Question # 13
A point (x,y) which satisfy a linear inequality in two variables form its
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Solution
Domain
Range
None
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Question # 14
The parabolay2=4ax open up if
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a<0
a≠0
a>0
All are incorrect
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Question # 15
Domain of y = scs x is
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All real numbers except π/2 + n*π
R
All negative integers
None of these
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Question # 16
tan(3π/2 +θ)=______;
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tanθ
cotθ
-tanθ
-cotθ
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Question # 17
If |αi + (α+1)j +2k| =3 then value of α is
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1,2
-1,-2
1,-2
-1,2
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Question # 18
A function whose range is just one elements is called
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One-one function
Constant function
Onto function
Identity function
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Question # 19
Which is a proper rational fraction
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Question # 20
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Addition
Subtraction
Multiplication
None of these
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Question # 21
The roots of px2 - (p-q)x-q=0 are
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equal
Irrational
Rational
Imaginary
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Question # 22
In one hour, the hour hand of a clock turns through
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Question # 23
If A = |aij| is (m x n) matrix then transpose of A is of the order
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m x m
m x n
n x n
n x m
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Question # 24
Union of the sets of rational and irrational numbers is called 6th set of
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Natural numbers
Real numbers
Whole numbers
Prime numbers
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Question # 25
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I quadrant
II quadrant
III quadrant
IV quadrant
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Question # 26
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k3
0
3k
k6
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Question # 27
The second degree equation 2x2 -xy+ 5x -2y +2 =0 represents
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Circle
Hyperbola
Ellipse
Pair of straight lines
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Question # 28
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Question # 29
Which of the following is a quadrantal angle
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100°
200°
170°
270°
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Question # 30
The nth term of an A.P., is 12-4n. Its common difference is
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8
4
4
16
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Question # 31
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