Question

Question no. 18 .. please answer anyone( genuine) pls

Answer 1

(i)151,200

I think this is answer..

Answer 2

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Q) In how many ways can the letters of the word " AMARAVATHI " be arranged, so that (i) All the A's are together? (ii) all the A's are not together.

Solution :

Total numbers of letters = 10

A occurred 4 times

total numbers of ways of letters of the word AMARAVATHI can

be arrange

$= \frac{10!}{4!} = 10 \times 9 \times 8 \times 7 \times 6 \times 5 \\ = 151,200$

number of ways letters of the word AMARAVATHI arranged with all A's together

$= 7! = 5040$

number of arrangement, so that

all the A's are not together = total number of ways - number of ways with all A's together

$= 151,200 - 5040 \\ = 146,160$

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