- Courses
- Tutorials
- Interview Prep
Permutation and Combination
Question 1
What is the number of possible words that can be made using the word “EASYQUIZ” such that the vowels always come together?
- A
120
- B
720
- C
2880
- D
4320
Question 2
What is the number of possible words that can be made using the word “QUIZ” such that the vowels never come together?
- A
8
- B
12
- C
16
- D
24
Question 3
How many five-letter words can be made from the word “APPLE” using all the alphabets with repetition and without repetition, respectively?
- A
1024, 60
- B
3125, 60
- C
1024, 1024
- D
240, 1024
Question 4
How many ways a 6 member team can be formed having 3 men and 3 ladies from a group of 6 men and 7 ladies?
- A
700
- B
720
- C
120
- D
500
Question 5
In how many ways can an interview panel of 3 members be formed from 3 engineers, 2 psychologists and 3 managers if at least 1 engineer must be included?
- A
30
- B
15
- C
46
- D
45
Question 6
How many 4-digit numbers can be formed from the digits 1, 2, 3, 4, 5, 6 and 7 which are divisible by 5 when none of the digits are repeated?
- A
120
- B
35
- C
24
- D
720
Question 7
In how many ways can 20 boys and 18 girls make a queue such that no two girls are together?
- A
20! × 20C18
- B
20! × 20P18
- C
20! × 21C18
- D
20! × 21P18
Question 8
There are 5 floating stones on a river. A man wants to cross the river. He can move either 1 or 2 steps at a time. Find the number of ways in which he can cross the river? (Man can't take double step from last stone).
- A
11
- B
12
- C
13
- D
14
Question 9
Out of 7 boys and 4 girls, how many queues of 3 boys and 2 girls can be formed?
- A
120
- B
25200
- C
24800
- D
1440
Question 10
A box contains 2 red coins, 3 green coins and 4 blue coins. In how many ways can 3 coins be chosen such that at least one coin is green?
- A
16
- B
32
- C
64
- D
128
There are 16 questions to complete.