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A gentleman has 6 friends to invite. In ...

A gentleman has 6 friends to invite. In how many ways, can he send invitation cards to them, if he has three servants to carry the cards?

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The correct Answer is:
`3^(6)`
Each friend can be invited by any of the 3 servants, i.e., in 3 ways. So, the required number of ways `=(3xx3xx3xx3xx3xx3)=3^(6).`
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