Question # 1

In a class of frequency distribution 14 - 18, the 18 is:

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Upper class limit

Lower class limit

Class interval

All of these

W - N = ....................

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∅

{∅}

N

W

The discriminant of quadratic equation is:

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b²-4ac

-b²+4ac

One and only one circle can be drawn through _______ non-collinear collinear points:

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One

Two

Three

Four

The decimal degrees of 25°30' is:

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25.2°

25.3°

25.4°

25.5°

The value obtained by reciprocating the mean of the reciprocal of x₁,x₂,x₃..............x₁₁ observation is called....................

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Geometric mean

Median

Harmonic mean

S.D

In an equilateral triangle ABC, then side BC is trisected at D then:

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O∩ E = ....................

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∅

O

E

Z

The ratio of a and b is written as:

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a : : b

a : b

a = b

Cot 30^o = ....................

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1/2

√3/2

√3

1/√3

The difference between upper limit of two consecutive classes is a frequency table is called:

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Class limit

Class interval

Class mark

All of these

The average pocket money of 30 students is Rs.20/- , The total amount in the class is:

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Rs.20/-

Rs.30/-

Rs.300/-

Rs.600/-

If the distance between the centres of two circles is equal to the sum of their radii, then the circles will:

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Intersect

Do not intersect

Touch each other externally

To resolve rational fraction, multiply both sides by:

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H.C.F

An even, number

L.C.M

An odd number

D° M' S"form of 45.36° is:

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45° 21" 36'

45' 21'° 36"

45° 21' 36''

45'' 21' 36°

Which of the following is associative law of union?

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A∪ (B ∪ C) = (A∪ B)∪ C

A∩ (B∩C)= (A∩B)∩C

A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)

A∩(B∪ C) = (A∩B)∪(A∩C)

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