How many words can be made by using the letters of the word ENGLAND such that words begin and end with a vowel?
I couldn't understand how come the answer to this question is $120$.
How many words can be made by using the letters of the word ENGLAND such that words begin and end with a vowel?
I couldn't understand how come the answer to this question is $120$.
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$7$ letters.
$$2*5*4*3*2*1*1=240$$
Divide by $2!$, because there are two $N$'s.
$$\frac{240}{2!}=120$$