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How many permutations can be formed from all the letters in the word a) 39,916,800 b) 435,600 c) 277,200 d) 144 e) 108,900 f) None of the above. ENGINEERING?

Respuesta :

Answer: c) 277,200

Step-by-step explanation:

The number of permutations can be formed of n things , where a things are like b things are like and so on :

[tex]\dfrac{n!}{a!\ b!....}[/tex]

The given word : ENGINEERING

Total letters = 11

Number of E's = 3

Number of N's = 3

Number of G's =2

Number of I's =2

The number of permutations can be formed from all the letters in the word "ENGINEERING" will be :

[tex]\dfrac{11!}{3!3!2!2!}\\\\=\dfrac{11\times10\times9\times8\times7\times6}{6\times6\times2\times2}\\\\=277200[/tex]

Hence, the number of permutations can be formed from all the letters in the word "ENGINEERING" = 277,200

∴ Correct answer is c) 277,200