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Online Tests
ECAT Mathematics Online Test MCQs With Answers
Question # 1
What is the axis of the parabola y
2
= 4ax?
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x = 0
y = 0
x = a
y = 0
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Question # 2
A function in which the second elements of the order pairs are distinct is called
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Onto function
One-one function
Identity function
Inverse function
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Question # 3
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Question # 4
Geometric mean between a and b is
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Question # 5
i
3
=
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-1
i
-i
1
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Question # 6
Fifteen girls compete in a race. The first three places can be taken by them in
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3! ways
12! ways
15 x 14 x 13 ways
42 ways
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Question # 7
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Question # 8
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Question # 9
How many comittees of 5 numbers can be chosen from a group of 8 players person when each committee must include 2 particular persons
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8!
5!3!
5!
20
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Question # 10
If the cutting plane is parallel to the axis of the cone and intersects both of its nappes, then the curve of intersection is
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an ellipse
a hyperbola
a circle
a parabola
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Question # 11
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Symmetric property
Cancellation property w.r.t. multiplication
Reflexive property
Transitive property
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Question # 12
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Question # 13
With usual notations b2 = a2 + c2 -2ac cos is called______;
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None of these
Law of sines
Law of consines
Law of tangents
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Question # 14
The locus of the centre of a circle which touches two given circles externally is:
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a hyperbola
an ellipse
a circle
a parabola
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Question # 15
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110
220
1320
None of these
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Question # 16
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Question # 17
A diagonal matrix is always
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Identity
Triangular
Scalar
Non-singular
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Question # 18
If nis positive integers, then 2
n
>2n+1, only when
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n≤ 3
n≥ 3
n≤ 2
n≤ 1
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Question # 19
In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then Ĉ is
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69°
66°
60°
63°
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Question # 20
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none of these
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Question # 21
7
2n
+ 3
n-1
. 2
3n-3
is divisible by
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24
25
9
13
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Question # 22
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0
-1
1
2
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Question # 23
3x + 4
>
0 is
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equation
inequality
identity
none of these
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Question # 24
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2x + 3
x
2
+ 3 + c
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Question # 25
If a plane passes through the vertex of a cone then the intersection is
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an ellipse
a hyperbola
a point circle
a parabola
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Question # 26
A circle drawn inside a triangle and touching its sides is called ______;
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Circumcirle
Incircle
Escribed circle
unit circle
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Question # 27
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0
1
undefined
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Question # 28
The centroid of a triangle divides each median in the ratio
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2 : 1
3 : 1
3 : 2
1 : 1
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Question # 29
The roots of the equation 2
2x
- 10.2
x
+ 16 = 0 are
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2, 8
1, 3
1, 8
2, 3
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Question # 30
Name the property used in a (b-c) = ab - ac
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commutative property of multiplication
distributive property of multiplication
associative property of multiplication
multiplicative inverse
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Question # 31
The central angle of an arc of a circle whose length is equal to the radius of the circle is called one
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Degree
Second
Minute
Radian
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