Question # 1

The factorial of positive integer is:

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rational no.

positive integer

real no.

none

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

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24

48

12

6

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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

If ⁿP₂ = 30 then n = :

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5

6

2

3

The number of diagonals of a polygon with n sides is:

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none of these

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3 ?

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none of these

No. of selection of n different things out of n is:

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1

n

n!

none

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

A key ring is an example of:

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permutation

circulation permutation

combination

none

Sum of all odd numbers between 100 and 200 is:

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6200

6500

3750

7500

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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4

6

8

10

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

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5

3

7

9

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

No. of arrangements of the letters of the word plane taking all letters at a time:

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5

1

none

Number of digits multiple of 5 made from the digits 2, 3, 5, 7, 9 is:

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5

24

20

none

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

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

none

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

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divergent

convergent

oscillatory

none of these

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

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