Question # 1

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

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1

n

n!

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 PAKISTAN can be made, taken all together ?

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21160

20160

20170

20016

Probability of an impossible event is:

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0

1

-1

∞

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 signals made by 4 flags of different colors using 2 flags at a time:

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6

12

60

none

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

In a simultaneous throw of two dice, The probability of getting a total of 7 is:

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If ⁿP₂ = 30 then n = :

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5

6

2

3

The value of ⁵C₂ is:

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1

10

20

30

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

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4!

5!

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

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

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none

ⁿC₄ =ⁿC₈then n = :

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4

12

8

6

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

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5

1

none

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

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360

120

60

70

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

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1

none of these

How many different number can be formed by taking 4 out of the six digits 1, 2, 3, 4, 5, 6:

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360

120

366

none of these

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