Question

Question #23
How many words can be formed by using all letters of the word 'ENGINEERING'?​

Answer 1

Answer:

1. ring

2. engine

3. ringing

4. rin

5.ginger

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Answer 2

Step-by-step explanation:

E=3, N=3, G=2, I=2, R=1

m letters means total number of letters , n letters means same letter

= m!/n! = 11!/3!×3!×2!×2!×1! = 11!/(3!×2!)² = 277200

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