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There are 2 identical white balls, 3 ide...

There are 2 identical white balls, 3 identical red balls, and 4 green balls of different shades. Find the number of ways in which they can be arranged in a row so that at least one ball is separated from the balls of the same color.

A

6(7 ! - 4 !)

B

7 (6! - 4!)

C

8! - 5!

D

none

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The correct Answer is:
A
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MOTION-THEORY AND EXERCISE BOOK-EXERCISE - 4 (LEVEL -II)
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