Question

In different permutations of all the letter of the word EXAMINATION are listed as in dictionary ,how many words are there in this list first word starting with E?

Answer 1

ĀNSWĒR ⏬⏬

EXAMINATION

Total words = 10

In which I occurs = 2 times

N occurs = 2 times

X occurs = 1 time

T occurs = 1 time

O occurs = 1 time


10!/2!2!= 10×9×8×7×6×5×4×3×2!/2!2!


= 907200


THANKS ❤:)


#Nishu HarYanvi ♥

Answer 2

Heyy mate ❤✌✌❤

Here's your Answer...

Words starting with A are formed with the letters 2I's,2N's A,E,X,M,T,O

Number of word formed by these letters are

= 10!/2! × 2!

=> 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1)/ 2 × 2

=> 907200.

Now,

The word starting with letter E, I, M, N, O,T, X will form.

Therefore,

Number of words before the first word starting with E is formed.
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