Question # 1

The sum of 10 A.Ms between 3 and 47 is:

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50

250

100

500

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

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

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series

sequence

means

convergent

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

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

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3

1

2

4

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

Which number cannot be a term of a geometric sequence ?

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0

1

-1

r

Sum of all odd numbers between 100 and 200 is:

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6200

6500

3750

7500

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

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2n-1

2n+1

2n+3

none

The series 3 + 33 + 333 + ...... is:

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A.P

G.P

H.P

none of these

An infinite sequence has no:

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nth term

last term

sum

none

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

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512

192

48

96

What is the general term of the geometric sequence -1, 1, -1, 1 ....... ?

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(-1)ⁿ

(1)ⁿ

(-1)^n-1

none of these

The next term of the sequence 1, 6, 20, 56, ........ is:

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112

144

212

none

A geometric series is convergent only if:

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| r | > 1

| r | < 1

| r | = 1

none of these

What is called the difference between two consecutive terms of an arithmetic sequence ?

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common ratio

common difference

common element

none of these

Two A.Ms. between 3 and 9 are:

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3. 6

5, 7

6, 12

3, 9

Sum of integral multiples of there between 4 and 22 is:

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81

75

211

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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