Question # 1

The probability that a number selected from the numbers 1, 2, 3, 4, 5, ......, 16 is a prime number is:

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

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5

24

20

none

Numbers are formed by using all the digits 1, 2, 3, 4, 5, 6 on digit being repeated, then the numbers which are divisible by 5 are:

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110

120

122

124

The factorial of positive integer is:

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rational no.

positive integer

real no.

none

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

A key ring is an example of:

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permutation

circulation permutation

combination

none

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

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12

24

6

5

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

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5

1

none

A dice is thrown. The probability to get an odd number is;

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1

none of these

No. of arrangements of the letters of the word PAKISTAN can be made, taken all together ?

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21160

20160

20170

20016

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

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

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360

120

60

70

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4

6

8

10

If S is a sample space and event E is S then P(E) is:

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0

1

>1

none

Probability of an impossible event is:

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0

1

-1

∞

ⁿC₄ =ⁿC₈then n = :

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4

12

8

6

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0

-1

>1

none

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

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6

12

60

none

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

A die is rolled. The probability that the dots on the top are greater than 4 is:

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5, 6

1

n! stands for:

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product of first natural numbers

sum of n natural numbers

product of n integers

none of these

The value of ⁵C₂ is:

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1

10

20

30

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