If a man and his wife enter in a bus, in which five seats are vacant, then the number of different ways in which they can be seated, is

Question

Dr. Abubacker · Accepted Answer

(c)
There are five seats in a bus are vacant. A man sit on any one of 5 seats in 5 ways. After the man is seated his wife can be seated in any of 4 remaining seats in 4 ways.
Hence, total number of ways of seating them$= 5 	imes 4 = 20$

Q. If a man and his wife enter in a bus, in which five seats are vacant, then the number of different ways in which they can be seated, is

Explanation

Reviewed by Dr. Abubacker

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