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Online Tests

ECAT Mathematics Online Test MCQs With Answers

Question # 1

If #n = (n-5)2 + 5, then find #3 x #4.

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54

12

4

9

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Question # 2

The sum of n terms of a series is denoted by

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d

n

S_n

a_n

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Question # 3

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Question # 4

a.a^-1= a^-1.a = 1 is a

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Commutative law of multiplication

Multiplication identity

Associative law of multiplication

Multiplication inverse

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Question # 5

For each real number, there is a number which is its

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Negative

Possitive

Opposite

Similar

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Question # 6

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c/a

-c/a

b/a

-b/a

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Question # 7

If a polynomial P(x) is divided by x - a, then the remainder is

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P(o)

P(-a)

P(a)

None of these

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Question # 8

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Question # 9

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sin x + c

-sin x + c

cos x + c

-cos x + c

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Question # 10

6! = ______

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360

720

6.5.4

None of these

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Question # 11

Riaz, Saba. Maria, Shehzad are to give speeches in a class. The teacher can arrange the order of their presentation in

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4 ways

12 ways

256 ways

24 ways

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Question # 12

202.04 is an example of

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Recurring decimals

Non-recurring decimals

Terminating decimals

None of these

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Question # 13

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Question # 14

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none of these

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Question # 15

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none of these

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Question # 16

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Question # 17

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4A - 3I

3A - 4I

A - I

None of these

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Question # 18

The matrix A is Hermitian when (A)' =

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A

-A

A

A'

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Question # 19

22.5°=______

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Question # 20

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all are correct

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Question # 21

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12

13

14

15

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Question # 22

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56

7

8

8/7

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Question # 23

The set {-1, 1} is

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Group under the multiplication

Group under addition

Does not form a group

Contains no identity element

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Question # 24

A conditional "if p then q" is denoted by

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Question # 25

The distance between two points P(x₁, y₁) and Q (x₂, y₂) is

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Question # 26

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Question # 27

If (x₁, y₁) and (x₂,y₂) are the end points of a diameter then the centre of the circle is

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Question # 28

If a^x= b^y= c^zand a, b, c are in G.P. then x, y, z are in

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A.P.

G.P.

H.P.

None of these

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Question # 29

Some of two real numbers is also a real number , this property is called:

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Commutative property w.r.t addition

Closure property w.r.t. addition

Associative property w.r.t. addition

Distributive property w.r.t addition

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Question # 30

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Null matrix

Triangular matrix

Unit matrix

Rectangular matrix

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Question # 31

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