Question # 1

The positive difference among the sale price and cost price is called

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Loss

Profit

Percentage

Ratio

B² - 4ac in a quadratic formula is called

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Nature of root

Discriminant

Solution set

Extraneous root

Number of digits in decimal system

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5

8

10

9

If A = [aij], then A+ is :

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[aij]

[bji]

[aji]

[aii]

Principal = Rs. 5000, Interest = 10%, Period = half year interest = ?

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Rs. 1000

Rs. 500

Rs. 250

Rs. 200

In decimal system base of system is:

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2

5

8

10

In base 2 system digits are used

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0, 2

0, 1

2, 3

0, 1, 2

If every element of matrix is zero that matrix is called:

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Null matrix

Square matrix

Identity matrix

Row matrix

If matrix contains single column and 3 rows then this type of matrix is called.

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Row matrix

Column matrix

Null matrix

Identity matrix

A + 0 is equal to:

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0

A

O + A

None of these

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{3}

R

R - {x = 3}

None of these

f(x)=ax + b is a form of

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Quadratic function

Linear function

Constant function

Explicit function

Number of terms in a proportion are

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2

4

3

5

The decimal number "2" in binary number system is equivalent to:

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0

1

10

11

The degree of equation 5x² + 7x + 6 is.

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2

3

4

5

A linear equation consist of roots

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One

Two

Zero

Three

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