Question # 1

3, 6, 12,.... is

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A.P

G.P.

H.P.

None of these

If a₁= 3, r = 2, then the nth term of the G.P. is

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2.3^n-1

3.2ⁿ

3.2ⁿ⁺¹

3.2^n-1

A function whose domain is a subset of natural numbers is called ______

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Identity function

Sequence

Onto function

Series

The three consecutive numbers a,√ab,b are in

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G.P

H.P

G.M

None of these

Arithmetic mean between a and b is

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A Geometric Series is divergent only if

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|r|>1

|r|≥1

|r|=1

None of these

The A.M. of two numbers is 34 and G.M. is 16, the numbers are

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2 and 64

64 and 3

64 and 4

None of these

Let a₁, a₂, a₃, a₄and a₅be such that a₁, a₂, and a₃are in A.P., a₂, a₃and a₄are in G.P and a₃, a₄and a₅are in H.P. Then, a₁, a₃and a₅are in

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G.P.

A.P.

H.P.

None of these

Write the first four terms of the arithmetic sequence 5, 2, -1, ... is

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3

-4

7

1

99th term of the series 2 + 7 + 14 + 23 + 34 + ..... is

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9998

9999

10000

None of these

p, q, r and s are integers. If the A.M. of the roots of x2- px + q2= 0 and G.M. of the roots of x2- rx + s2= 0 are equal, then

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q is an odd integer

r is an even integer

p is an even integer

s is an odd integer

A Series which does not coverage to a Unique sum is called

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Harmonic Series

Oscillatroy Series

Arithmetic Series

None of these

An indicated sum of terms of a sequence is represented by

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Sn

an

S(n)

{Sn}

Sequence also called..............

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Series

Function

progressions

Elements

If A is such that a,A,B are in A.P then A is called

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A.M

Common ratio

Common difference

None of these

In following question, a number series is given with one term missing. choose the correct alternative that will same pattern and fill in the blank spaces.1 , 4, 9, 16, 25, x

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35

36

48

49

The number of divisors of 1029, 1547 and 122 are in

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A.P.

G.P.

H.P.

None of these

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If Sn is a definite number as n → ∞,then the geometric series is

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Convergent

Divergent

Oscillatroy

None of these

The difference of two consecutive terms of an A.P is called the

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Common difference

Common ratio

Geometric series

Geometric mean

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an A.P.

a G.P.

a H.P.

None of these

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A.P.

G.P.

H.P.

None of these

1/2,1/3,1/4,1/5.........is

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a geometric sec

an arithmetric series

finite sequence

an infinite sequece

Which term of the A.P 5,8,11,24.............is 320

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104th

106th

105th

64th

The third term of a G.P. is 4, The product of first five terms is

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43

45

46

None of these

The sum of an indicated number of terms in a sequence is called

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sequence

progression

Series

Mean

H₁, H₂, H₃, .... H_nare called n harmonic means between a and b if a, H₁, H₂, H₃, ... H_nb are in

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H.P.

G.P.

A.P.

None of these

The difference of two consecutive terms of an A.P. is called ______

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General term

Common ratio

Common difference

None of these

The nth term of an A.P is (3n+5) Its 75th term is

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26

7

21

Cannot be determined

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12

13

14

15

G is geometric mean between a and b if a, G, b is

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A.P.

G.P.

H.P.

None of these

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