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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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(a + b)c = ac + bc
a + b = b + a
(a + b) + c = a + (b + c)
a(b +c) = ab + ac
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Question # 2
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Question # 3
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Question # 4
i
=
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√1
√2
√-2
√-1
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Question # 5
The term involving x4 the expansion (3-2x)7 is
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217 x4
15120x4
313x4
-25x4
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Question # 6
∀x,y∈R and x> 0 , y>0, if x > y
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None of these
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Question # 7
If y=sin(ax+b) then y4=________:
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sin4(ax+b)
a4sin(ax+b)
a4cos(ax+b)
None of these
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Question # 8
What is the circular measure of the angles between the hands of which at 4 o clock
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π/6
3π/2
π/4
2π/3
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Question # 9
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0
1
2
none of these
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Question # 10
The point of concurrency of the right bisectors of the sides of a triangle is called
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incentre
circum center
e-center
centroid
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Question # 11
The number of words that can be formed out of the letters of the word ASSASSINATION is
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Question # 12
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Question # 13
Three right angles is the angle of measure
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270°
180°
90°
270'
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Question # 14
There are ______ types of rational fraction
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Three
Four
Five
Two
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Question # 15
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Question # 16
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Question # 17
Number of combination of zero or more things out of n different things
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nPn
nPr
nCr
2n
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Question # 18
i
101
=
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i
i
2
-i
-1
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Question # 19
H
1
, H
2
, H
3
, .... H
n
are called n harmonic means between a and b if a, H
1
, H
2
, H
3
, ... H
n
b are in
Choose an answer
H.P.
G.P.
A.P.
None of these
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Question # 20
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none of these
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Question # 21
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all
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Question # 22
i
101
=
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i
i
2
-i
-1
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Question # 23
A fraction in which the degree of the numerator is greater than or equal to the degree of the denominator is called
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A proper fraction
An improper fraction
An equation
An identity
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Question # 24
In quadratic equation y=ax
3
+bx+c, if b and c are both zero then the graph is
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Symmetric w.r.t.y-axis
Symmetric w.r.t.x-axis
Straight Line
Circle
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Question # 25
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Question # 26
A key ring is an example of
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Permutation
Circular permutation
Combination
None
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Question # 27
The point which is closet to the focus of a parabola is:
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vertex
Chord
Focus
Directix
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Question # 28
A matrix in which the number of rows is equal to the number of columns is called a
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Diagonal matrix
Rectangular matrix
Square matrix
Scalar matrix
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Question # 29
The equation ax
2
+ 2hxy + by
2
+2gx + 2fy + c =0 represents an ellipse if
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Question # 30
A bag contains 5 white, 7 red and 5 black balls. If four balls are drawn one by one with replacement, the probability that none is white is
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(11/16)
2
(5/16)
2
(11/16)
4
(5/16)
4
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Question # 31
No term of a geometric sequence can be
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0
1
2
3
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