• 
  A
• 
  B
• 
  C
• 
  D

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

• 60 A
• 15 B
• 10 C
• None D

If S is a simple space and event E is (pic) then P(E) =

• 0 A
• -1 B
• >1 C
• none D

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

• 5 A
• 1 B
• 
  C
• none D

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 ?

• 
  A
• 
  B
• 
  C
• none of these D

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

• 15130 A
• 15120 B
• 1512 C
• none of these D

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

• n(n-1) A
• 2! B
• n(n+1) C
• None D

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

• 4! A
• 5! B
• 
  C
• none of these D

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

• 
  A
• 
  B
• 
  C
• none D

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

• 5 A
• 24 B
• 20 C
• none D

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

• 
  A
• 
  B
• 
  C
• none of these D

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

• 
  A
• 
  B
• 
  C
• 
  D

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

• 360 A
• 120 B
• 60 C
• 70 D

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

• 360 A
• 120 B
• 366 C
• none of these D

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

• 1 A
• 
  B
• 
  C
• none of these D

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

• 202 A
• 220 B
• 110 C
• none of these D

Probability of a certain event is:

• 0 A
• 1 B
• >1 C
• ∞ D

• 4 A
• 6 B
• 8 C
• 10 D

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

• 5 A
• 15 B
• 51 C
• 10 D

ⁿC₄ =ⁿC₈then n = :

• 4 A
• 12 B
• 8 C
• 6 D