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Online Tests

ECAT Pre General Science Mathematics Online Test MCQs With Answers

Question # 1

The minimum value of the quadratic function f(x) = 5 x 2-11,is

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7

-7

6

-11

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Question # 2

If b²- 4ac is positive then the roots of the equation are

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Real

Imaginary

Positive

Negative

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Question # 3

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Question # 4

An A.P. consists of n(odd terms) and its middle term is m. then the sum of the A.P. is

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2 mn

1/2 mn

mn

mn²

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Question # 5

If n is any positive integer then 4ⁿ>3ⁿ+ 4 is true for all

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Question # 6

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Question # 7

f(x) = C is

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identity function

constant function

linear function

quadratic function

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Question # 8

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7

5

6

None of these

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Question # 9

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Question # 10

If x is an image of y under the function f. This can be written as

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y = f(x)

f(x) = 0

x = f(y)

f(y) =0

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Question # 11

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0

1

2

4

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Question # 12

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Question # 13

In how many ways can 5 persons be seated at a round table

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5!

4!

3!

120

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Question # 14

(ABC)' =

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CBA'

CBA

C'B'A

C'B'A'

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Question # 15

tan270° =__________;

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0

1

-1

Undefined

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Question # 16

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Question # 17

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Question # 18

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(a + b)c = a . c + bc

a + b = b + a

(a + b) + c = a + (b + c)

a(b+ c) = ab + ac

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Question # 19

The multiplicative inverse of 1 is

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1

-1

0

Does not exist

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Question # 20

In-radius is denoted by

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r

η

r2

R

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Question # 21

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Question # 22

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0

-1

1/2

1

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Question # 23

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Question # 24

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I

14 I

0

None of these

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Question # 25

The principal value of sin^-1[-√(√3) /2] is

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5π/3

-2π/3

-

π/3

π/3

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Question # 26

If f:A→B is an injective function and second elements of no two of its ordered pairs are equal, then f is called

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1-1 and onto

Bijective

1-1 and into

None of these

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Question # 27

The process of finding the unknown elements in triangle is called the

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solution of the triangle

Mean differnece

Engineering distance

angle of depressin

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Question # 28

Circumcentre of the triangle, whose vertices are (0, 0), (6, 0) and (0, 4) is

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(2, 0)

(3, 0)

(0, 3)

(3, 2)

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Question # 29

A box contains 10 red 30 white and 20 black marbles When a marble is drawn at random the probability that it is either red or white is

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1/6

1/3

1/2

2/3

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Question # 30

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Question # 31

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A rational number

An irrational number

An odd number

A prime number

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