1.

Thenumberof waysin which5 redbeedsand 4 yellowbeedsof differentsizescan bemadeoutto forma necklace so thatnotwoyellowbeadscometogether is

Answer»

`(4!""^(5)P_(4))/(2)`
`6!XX""^(4)P_(5)`
`(6!xx""^(4)P_(5))/(2)`
`4!xx""^(5)P_(4)`

ANSWER :A


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