Question # 1

The product of three G.Ms between 1 and 16 is:

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32

64

128

16

Sum of all odd numbers between 100 and 200 is:

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6200

6500

3750

7500

If there are six G.Ms between 3 and 284 then G₄ =

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24

48

12

6

Sum of all positive integral multiples of 3 less than 100 is:

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950

760

1230

875

If a_n-1 = 2n - 3 then a_n+1 =

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2n - 1

2n + 1

2n + 3

none

A geometric series is convergent only if:

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| r | > 1

| r | < 1

| r | = 1

none of these

Domain of finite sequence is:

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set of natural numbers

subset of N

R

none

What is called the arrangement of numbers formed according to some definite rule ?

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arithmetic sequence

geometricsequence

sequence

none of these

Sequences are also called:

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Series

Progressions

Means

Convergence

What is the common difference of the sequence 11, 5, -1, ......... ?

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6

-6

none of the foregoing numbers

A.M between 1 + x - x² and 1 + x + x² is:

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1 + x²

1 + x

2

none

The reciprocal of the terms of A.P. form:

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A.P

G.P

H.P

none of these

Two A.Ms. between 3 and 9 are:

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3. 6

5, 7

6, 12

3, 9

The next term of the sequence-1, 2, 12, 40, .........is:

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112

212

144

none

G.M between -2i and 8i is:

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4 or -4

4i or -4i

2 or -2

none

If S is the H.M between 2 and b then b = :

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-10

10

7

5

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A.P

G.P

H.P

none

If a_n-3 = 2n - 5 then a_n =

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2n-1

2n+1

2n+3

none

Reciprocals of the terms of the geometric sequence form:

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A.P

G.P

H.P

none

Zero cannot be a term of:

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A.P and G.P

G.P and H.P

A.P and H.P

only H.P

7th term of G.P 3, 6, 12 ..... is:

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512

192

48

96

If a_n = (n + 1) a_n-1, a₁ = 1, second term of the sequence is:

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3

1

2

4

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