Q. 19

# Find the number of different 4-letter words, with or without meanings that can be formed from the letters of the word ‘NUMBER’.

Given, the total number of letters in ‘NUMBER’ = 6

To find: Number of different 4-letter words, with or without meanings like numb, nume or nmbr etc.

Formula used:

Number of arrangements of n things taken r at a time = P(n, r)

The total number of ways in which this can be done

= the number of arrangements of 6 things taken 4 at a time

= P(6, 4)

= 6 × 5 × 4 × 3

= 360

Hence, Number of different 4-letter words, with or without meanings that can be formed from the letters of the word ‘NUMBER’ are 360

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Circular permutations61 mins
Challenging Quiz on P&C | Test Yourself55 mins
Permutations & Combinations | Analyze your learningFREE Class
Check Your progress Part 2| Interactive Quiz: Permutation & CombinationFREE Class
Understand Permutations like never before60 mins
Lecture on Combinations49 mins
Interactive Quiz on Division and distribution of objects17 mins
Interactive Quiz on Combinations50 mins
Division and distribution of objects58 mins
Interactive Quiz on Combinations-0253 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses