Important Question..
There are 10 couples.. In how many ways can they be arranged so that husband and wife are always together?
a) 10!
b) 2!10!
c) 10^2.2!
d) 2^10.10!
There are 10 couples.. In how many ways can they be arranged so that husband and wife are always together?
a) 10!
b) 2!10!
c) 10^2.2!
d) 2^10.10!
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