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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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 # 2
Two cards are drawn at random without replacement. the probability that the first is a king and second is not a king is
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48 / 663
24 / 663
12 / 663
None of these
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Question # 3
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Question # 4
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Question # 5
For an arithmetic series to be convergent it is necessary that the series has
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Finite terms
d<0
Infinite terms
None of these
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Question # 6
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1
0
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Question # 7
The period of the trigonometric function y = sin x cos x is
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2π
π
4π
π / 2
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Question # 8
Tan 3x tan 2x-tan x is equal to
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Tan x tan 2x tan 3x
-tan x tan 2x tan 3x
Tan x tan 2x - tan - tan x tan 3x - tan 2x tan 3x
None of these
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Question # 9
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Question # 10
The set {Z\{0}} is group w.r.t
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Addition
Multiplication
Division
Subtraction
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Question # 11
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A = x, B = 1
A = 0, B = 2
A = -1, B = 1
A = x-1, B = x+1
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Question # 12
Range of sec
θ
is
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Z - {x | -1 < x < 1}
W - {x | -1 < x < 1}
R - {x | -1 < x < 1}
R
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Question # 13
150°= ______
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Question # 14
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Question # 15
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Question # 16
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2 x 2
2 x 3
3 x 2
3 x 3
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Question # 17
Additive inverse of -a -b is
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a
-a + b
a - b
a + b
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Question # 18
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Question # 19
An equation which holds good for all values of variables is called
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Equation
Conditional equation
Constant
None
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Question # 20
Area of the circle with ends of a diameter at (-3,2) and (5,-6)
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128π sq. units
64π sq. units
32π sq.units
None of these
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Question # 21
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none of these
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Question # 22
In set builder notation the set {0,1,2,........100} can be written as
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{x / xε B ∧ x ≤ 100}
{x / x ∈ W ∧ x < 101}
{x / x ∈ Z ∧ x < 101}
The set of first 100 whole numbers
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Question # 23
The expression x2 - x + 1 has
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One proper linear factor
No proper linear factor
Two proper linear factors
None of these
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Question # 24
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Question # 25
(-28,12) divides the join of A(-6,3) and B(5,-2) in ratio
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1:2
3:2
2:3
2:1
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Question # 26
The area of a sector with central angle of 0.5 radians in a circular region whose radius is 2m is
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Question # 27
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Question # 28
The period of|sin2x| is
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π/2
-π/2
π
π/3
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Question # 29
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Question # 30
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100
99
0
none of these
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Question # 31
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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