### Quantitative Aptitude - Permutations and Combinations

#### Question - 1

The values of $^{75}P_{2}$ is :

• A 2775
• B 150
• C 5550
• D None of these

#### Question - 2

How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS' , if repetition of letters is not allowed ?

• A 40
• B 400
• C 5040
• D 2520

#### Question - 3

How many words with or without meaning, can be formed by using all the letters of the word, 'DELHI' , using each letter exactly once ?

• A 10
• B 25
• C 60
• D 120

#### Question - 4

In how many ways can the letters of the word 'APPLE' be arrangned

• A 720
• B 120
• C 60
• D 180
• E none of these

#### Question - 5

The how many ways can the letters of the word 'LEADER' be arranged?

• A 72
• B 144
• C 360
• D 720
• E None of these

#### Question - 6

In how many different ways can the letters of the word 'RUMOUR' be arranged ?

• A 180
• B 90
• C 30
• D 720
• E None of these

#### Question - 7

How many words can be formed by using all the letters of the word, 'ALLAHABAD' ?

• A 3780
• B 1890
• C 7560
• D 2520
• E None of these

#### Question - 8

How many arrangement can be made out of the letters of the word 'ENGINEERING' ?

• A 277200
• B 92400
• C 69300
• D 23100
• E None of these

#### Question - 9

How many words can be formed from the letters of the word 'SIGNATURE' so that the vowels always come together ?

• A 720
• B 1440
• C 2880
• D 3600
• E 17280

#### Question - 10

In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together ?

• A 120
• B 720
• C 4320
• D 2160
• E None of these