Question # 1

In how many ways two places can be filled by n objects:

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n(n-1)

2!

n(n+1)

None

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No. of arrangements can be made of 4 letters a, b, c, d taken 2 at a time ?

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8

12

10

14

Probability of an impossible event is:

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0

1

-1

∞

If ⁿP₂ = 30 then n = :

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5

6

2

3

Number of ways of arranging 5 keys in a circular ring is:

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12

24

6

5

No. of signals made by 4 flags of different colors using 2 flags at a time:

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6

12

60

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

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

One card is drawn at random from a pack of 52 cards. The probability that the card drawn a king is:

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none of these

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

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none of these

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

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1

none of these

A dice is rolled, the probability of getting a number which is even or greater than 4 is:

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none of these

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

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5

15

51

10

No. of signals made by 5 flags of different colors using 3 flags at a time is:

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60

15

10

None

n! stands for:

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product of first natural numbers

sum of n natural numbers

product of n integers

none of these

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

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1

n

n!

none

ⁿC₄ =ⁿC₈then n = :

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4

12

8

6

A key ring is an example of:

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permutation

circulation permutation

combination

none

In a simultaneous throw of two dice, The probability of getting sum 3 or 11 is:

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none

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

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