Maths-
General
Easy
Question
Number of permutations that can be made using all the letters of the word MATRIX is
- 120
- 240
- 480
- 720
Hint:
Basically Permutation is an arrangement of objects in a particular way or order. While dealing with permutation one should concern about the selection as well as arrangement.
In Short, ordering is very much essential in permutations. In other words, the permutation is considered as an ordered combination.
The correct answer is: 720
The word MATRIX is a 6 letter word
Thus, number of permutations that can be made using all the letters of the word MATRIX is 6! = 720
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The number of different signals that can be made by 5 flags from 8 flags of different colours is :
Detailed solution
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