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The number of ways can five people be divided into three groups isA. `20`B. `25`C. `30`D. `36`

Answer» Correct Answer - B
`(b)` Five people can be divided into three groups in `(1,1,3)` or `(1,2,2)` ways
Hence, total number of ways
`=(5!)/(3!(1!)^(2))xx(1)/(2!)+(5!)/((2!)^(2)1!)xx(1)/(2!)`
`=10+15=25`


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