Question # 1

A number A is called the arithmetic mean between a and b if a, A, b is ______

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Arithmetic sequence

Geometric sequence

Harmonic sequence

Arithmetic sequence

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Additive property of inequality

Commutative property

Additive inverse

Additive identity

If S is a sample space and event set E =Φ then P(E) is

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>0

1

<1

0

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-2x cos x²

-2x²sin x²

-x²sin x

-2x²sin x²

Sum of two quantities is at least 20 is denoted by

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x +y =20

x +y≥ 20

x +y≠ 20

x +y≤20

If a,β are the roots of ax2+bx+c=0,the equation whose roots are doubled is

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ay2 +2by+c=0

ay2+2by+4c=0

ay2+2by+c=0

ay2+by+4c=0

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0

1

2

3

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A statement which is either true or false is called

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Induction

Deduction

Propositicon

Logic

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If the cutting plane is parallel to the axis of the cone and intersects both of its nappes, then the curve of intersection is:

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an ellipse

a circle

a parabols

a hyperbola

The tangent to the parabola y2 =4ax and perpendicular line from the focus on it meet

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x =0

y =0

x =-9

y = -a

If the circumference of a circle is divided into 360 congruent parts, the angle subtended by one part at the centre of the circle is

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1⁰

1'

1"

1 rad

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Addition

Multiplication

Division

Both addition and multiplication

If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2

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36 +(-32)i

-36+32i

6+(-11)i

0, +(-12)i

I f a =5i + 2j, then|a| =

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√13

√7

1/√13

√29

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The set of ordered pairs (x,y) such that ax+ by < c, and (x,y) such that ax + by>0, are called

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Linear Inequalities

Feasible regions

Half planes

Boundary

Form a group of 5 men and 3 women, a committee of 4 persons is to be selected randomly. The probability that there is a majority of men is

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1/4

1/3

1/2

1/6

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Roots of the equation x²+ 5x - 1 = 0 are

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Rational

Irrational

Complex

None of these

The corner point of the boundary lines, x- 2x

x+2y=10 is:

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(8,1)

(1,8)

(6,10)

(3,5)

Through how many radians does the hour hand of a clock turn in one hour

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The system of measurement in which the angle is measured in degrees, minutes and seconds is called the

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circular system

CGS system

sexagesimal system

none of these

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0

1

The roots of (b-c)x2+(c-a) x+a-b=0 are equal if

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2b = a+c

2a = b+c

2c = a+b

a + b + c =0

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n < 8/5

n < 5/8

|n| < 8/5

|n|>8/5

Circle x² + y² - 2y -y = 0 and x² + y² - 8y -4 =0:

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Interesect

touch externally

touch internally

do not touch

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