There are three rooms in a Hotel: one single, one double and one for f – McqOptions

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1.	There are three rooms in a Hotel: one single, one double and one for four persons. How many ways are there to house seven persons in these rooms ?
A.	105
B.	7! x 6!
C.	7!/5!
D.	420
Answer» B. 7! x 6!

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