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  • 20-05-2016
  • Mathematics
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How many permutations can be made of the letters of the word "radar" when taken all at a time?

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adefioyelaoye
adefioyelaoye adefioyelaoye
  • 31-03-2022

The number of permutations can be made of the letters of the word "radar" when taken all at a time is 30.

What is Permutation?

This is defined as ways in which n things can be arranged, taken all at a time.

P(n,r) = n!/(n-r)!

Radar has 5 words with 2r , 2a and 1d which means

5! / 2! 2! 1!

5! = 5×4×3×2×1 = 120

2! 2! 1! = 4

120/4 = 30

Read more about Permutation here https://brainly.com/question/1216161

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