Mr and mrs smith have invited 9 of their friends and their spouses for a party at the waikiki beach resort. They stand for a group photograph. If mr smith never stands next to mrs smith (as he says they are always together otherwise). How many ways the group can be arranged in a row for the photograph?
a. 20!
b. 19! + 18!
c. 18 x 19!
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Answer:
option but is the correct answer
Answered by
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Answer:
option b is the correct answer
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