Question # 1

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

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70

54

70

73

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

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5

15

51

10

The value of ⁵C₂ is:

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1

10

20

30

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

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n(n-1)

2!

n(n+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

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

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Probability of a certain event is:

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0

1

>1

∞

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

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none of these

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

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12

24

6

5

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

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5, 6

1

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

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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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

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

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360

120

60

70

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 arrangements of the letters of the word PAKPATTAN can be made, taken all together ?

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15130

15120

1512

none of these

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

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1

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

Probability of an impossible event is:

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0

1

-1

∞

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