Question # 1

The 7th term of the A.P 7,11,15,is

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24

31

26

23

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

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an A.P.

a G.P.

a H.P.

None of these

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If p, q, r and in A.P., a is G.M. between p and q and b is G.M. between q and r, then a², q², b²are in

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A.P.

G.P.

H.P.

None of these

If a, b, c, d, e, f are in A.P.,then e-c is equal to

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2(c - a)

2(f - d)

2(d - c)

d - c

The sum of n terms of a series is denoted by

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d

n

S_n

a_n

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

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26

7

21

Cannot be determined

If a_n= 2n -3, write the first four terms

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-3, -1, 1, 3

1, 3, 5, 7

-1, 1, 3, 5

None of these

The nth term of a G.P. is

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a₁rⁿ

a₁rⁿ⁺¹

a₁r^n-1

a₁r^-n

The third term of the sequence a_n= (-1)^n-1(n-7) is ______

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8

4

-4

8

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If a₁, r and a_nare the first term, common ratio and the nth term respectively of a G. P. then a_n=

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a₁rⁿ

a₁r^n-1

a₁rⁿ⁺¹

a₁r

Find the next two terms of 7, 9, 12, 16,...

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18, 20

19, 22

20, 25

21, 27

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

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Series

Function

progressions

Elements

How many numbers are there between 103 and 750 which are divisible by 6

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125

107

108

113

If G is a G.M between a and b then a,G,b are in

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A.P

H.P

G.P

None of these

If a, b, c are in AP., a, b, c are in G.P. then A, m²b, c are in

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A.P.

G.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

If 6th term of a series in A.P, is -2 and 8th term is -8, the first term of the serie is

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13

-13

18

-10

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

In an A.P,a +(n-a)d is

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1st term

General term

Last term

None of these

Find the geometric mean between 4 and 16

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A,G,H are in

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A.P

G.P

H.P

None of these

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

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sequence

progression

Series

Mean

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an - an-1 will be common difference in an A.P if

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n = 1∀n∈ N

n>1∧n∈N

n∈Z

None of the above

If all members of a sequence are real numbers then it is called

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A.P

Real Sequence

G.P

None of these

Which one represents a sequence

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an

Sn

a(n)

{an}

Find the sum of the infinite geometric series 2 + 1 + 0.5 + ....

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3.5

3

4

None of these

If a₁and r are the first term and the common ratio respectively then (n + 1)th term of the G.P. is

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0

a₁r^n-1

a₁rⁿ⁺¹

a₁rⁿ

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