Question # 1

Two A.Ms. between 3 and 9 are:

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3. 6

5, 7

6, 12

3, 9

For a positive integer n:

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(n+1)! = (n+1)n!

(n+1)! = (n+1)(n-1)!

n! = n(n+1)!

none of these

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0

-1

>1

none

No. of necklaces can be made from 7 beads of different colors ?

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360

120

60

70

No. of triangles can be formed by joining the vertices of the polygon having 5 sides ?

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10

15

20

none of these

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

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112

144

212

none

No. of diagonals can be formed by joining the vertices of the polygon having 12 sides ?

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70

54

70

73

The series 2 + 2 + 2 ..... is:

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divergent

convergent

oscillatory

none of these

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

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A.P

G.P

H.P

none of these

In an A.P.a₃ = 12 and a₇ = 32 then d = :

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5

3

7

9

No. of diagonals can be formed by joining the vertices of the polygon having 5 sides ?

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5

15

51

10

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4

6

8

10

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

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2n

n + 1

2n²

none of these

A dice is thrown. The probability to get an even number is:

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1

none of these

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

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81

75

211

none

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

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4 or -4

4i or -4i

2 or -2

none

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

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32

64

128

16

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

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2n-1

2n+1

2n+3

none

A sequence is denoted by:

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{a_n}

a_n

a₁ + (n-1) d

The number of ways in which fiver persons can sit at a round table is:

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4!

5!

none of these

Domain of finite sequence is:

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set of natural numbers

subset of N

R

none

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11th Class FA Mathematics Chapter 7 Online Test MCQs With Answers

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