Question # 1

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

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950

760

1230

875

Fifth term of the sequence 2, 6, 11, 17.

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24

41

32

A sequence of numbers whose reciprocal form an arithmetic sequence, is known as:

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arithmetic sequence

geometricsequence

harmonicsequence

none of these

A clock strikes once when its hour hand is at one, twice when it is at two, and so on. How many times does the clock strike in ten hours ?

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55

78

66

46

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

none

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 x - 3 & x + 5 is __________:

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x + 1

x - 1

2x + 2

none

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

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3

1

2

4

A function whose domain is the set of natural numbers is called the:

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series

sequence

means

convergent

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

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4 or -4

4i or -4i

2 or -2

none

A sequence is denoted by:

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{a_n}

a_n

a₁ + (n-1) d

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

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-10

10

7

5

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

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1 + x²

1 + x

2

none

Sum of all odd numbers between 100 and 200 is:

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6200

6500

3750

7500

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

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A.P

G.P

H.P

none of these

What is the next term in the sequence 10, 7, 4, 1...........?

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2

-2

-3

none of these

Reciprocals of the terms of the geometric sequence form:

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A.P

G.P

H.P

none

A geometric series is convergent only if:

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| r | > 1

| r | < 1

| r | = 1

none of these

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

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2n - 1

2n + 1

2n + 3

none

What is the general term of the sequence 2, 4, 6, 8, ........... ?

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2n

n + 1

2n²

none of these

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