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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
w
28
+ w
38
= ______
Choose an answer
0
1
w
-1
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Question # 2
Name the property used in 4 + 9 = 9 + 4
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Associative property of addition
Commutative property of addition
Distributive property
Additive identity
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Question # 3
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Question # 4
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Question # 5
In a country, 55% of the male population has houses in cities while 30% have houses both in cities and in village. Find the percentage of the population that has house only in villages.
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45
30
25
50
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Question # 6
If the roots of ax
2
- bx - c = 0 change by the same quantity, then the expression in a, b, c that does not change is
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Question # 7
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Question # 8
The maximum value of the quadratic function f(x) = -2x2+20x,is
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4
3
50
7
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Question # 9
The mid point of the line joining the points P(x
1
, y
1
) and Q(x
2
, y
2
) is
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Question # 10
The identity element of a set X with respect to intersection in P(x) is
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X
Does not exist
∅
None of these
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Question # 11
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A parabola
An ellipse
A hyperbola
A circle
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Question # 12
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Question # 13
n(n-1)(2n-1), for all natural numbers n, is divisible by
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12
6
2
18
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Question # 14
The end points of the major axis of the ellipse are called its
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Foci
Vertices
Co - vertices
None of these
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Question # 15
an - an-1 will be common difference in an A.P if
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n = 1∀n∈ N
n>1∧n∈N
n∈Z
None of the above
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Question # 16
sin
-1
x =
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tan
-1
x
Cosec
-1
x
Cosec x
cosec
-1
(1/x)
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Question # 17
A relation in which the equality is true for all values of the unknown is called ______
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An identity
An equation
A polynomial
None of these
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Question # 18
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Question # 19
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A
B
U
None of these
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Question # 20
(a,0) x (c,0) =
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(0,ac)
(ac,0)
(0,0)
(a,c)
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Question # 21
for n€ N, 3
2n + 7 is divisible by
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7
8
9
10
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Question # 22
The slope of the normal at the point (at
2
, 2at) of the parabola y
2
= 4ax is
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1/t
t
-t
-1/t
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Question # 23
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y/x
x/y
y/z
None
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Question # 24
Two matrices A and B are conformable for the product AB if
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Both A and B are square
Both A and B are symmetric
Number of rows of A = number of columns of B
Number of columns of A = number of rows of B
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Question # 25
The point where the axis meets the parabola is called
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Directrix
Foucu
Chord
Vertix
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Question # 26
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Question # 27
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Question # 28
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1
0
3
-3
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Question # 29
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Question # 30
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Question # 31
The domain of the function x/x
2
-4 is given by
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R
R + 2
[R - (
+
2)
R-4
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