# How, may five-digit numbers can be formed using the digits 0 to 8 if no digit is to occur more than once in any number

1.  1680

2.  6720

3.  13440

4.  None of these

4

13440

Explanation :
No Explanation available for this question

# A three-digit number is formed, using the digits 0, 1,2, 5, 6 so that each digit is used at most once in each member. How many numbers formed in this way are divisible by 3

1.  8

2.  20

3.  6

4.  15

4

20

Explanation :
No Explanation available for this question

# A double decked bus can accommodate 110 passengers, 50 in the upper deck and 60 in the lower deck. In how many ways can the passengers be accommodated if 15 refuse to be in the upper deck while 10 others refuse to be in the lower deck

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# There are 6 envelopes and 6 corresponding letters.These letters are placed in the envelopes randomly. In how many ways exactly 5 letters are placed into their corresponding envelopes

1.  0

2.  5

3.  6

4.  5!

4

0

Explanation :
No Explanation available for this question

# In which regular polygon are the diagonals double the number of sides

2.  pentagon

3.  hexagon

4.  heptagon

4

heptagon

Explanation :
No Explanation available for this question

# A team of 11 players can be selected from 10 batsman and 6 bowlers. In how many ways the team be formed so that it contains at most 3 bowlers

1.  1056

2.  1050

3.  906

4.  900

4

1056

Explanation :
No Explanation available for this question

# In how many ways can a representation of 12 students consisting of 8 boys and 4 girls be selected from 15 boys and 10 girls, if a particular boy A and a particular girl B aré never together in the representation

1.  14c8x9c4

2.  15csx10c4 -14c8x9c4

3.  15csx10c4 -14c7x9c3

4.  14c7x9c3

4

15csx10c4 -14c7x9c3

Explanation :
No Explanation available for this question

# In group of 30 there are 15 males and 15 females.In how many ways can a committee consisting of 25 members be formed such that it always includes 10 particular males and 10 particular females

1.  252

2.  216

3.  288

4.  240

4

252

Explanation :
No Explanation available for this question

# In how many ways can a delegation of 5 members be formed from 4 ladies and 5 gentlemen if the delegation has to comprise; exactly 2 ladies and 3 gentlemen.

1.  60

2.  16

3.  32

4.  240

4

60

Explanation :
No Explanation available for this question

1.  1005

2.  2001

3.  3015

4.  4002

4