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CBSE Class 10 Answered

Please solve this question 
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Asked by vikasg13.hardware | 28 Jun, 2018, 06:21: AM
answered-by-expert Expert Answer
According to the question,
guest will stay either in X or in Y
 
X Y X Y or Y X Y X
Required number of ways = 2 × 4! = 48
Answered by Sneha shidid | 02 Jul, 2018, 09:51: AM

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