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# In how many ways can 6 rings be worn in 4 fingers of 1 hand

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Director
Joined: 24 Oct 2005
Posts: 660
Location: London
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Kudos [?]: 7 [0], given: 0

In how many ways can 6 rings be worn in 4 fingers of 1 hand [#permalink]  25 Nov 2005, 04:15
In how many ways can 6 rings be worn in 4 fingers of 1 hand.
Current Student
Joined: 29 Jan 2005
Posts: 5244
Followers: 23

Kudos [?]: 179 [0], given: 0

Depends. If only one ring per finger, then: 6P4=360*5=1800.

If multiple rings can be worn on any one finger in multiple orders, then this problem becomes much more complicated.
Director
Joined: 24 Oct 2005
Posts: 660
Location: London
Followers: 1

Kudos [?]: 7 [0], given: 0

The explanation is :

r things can be given to n persons in n^r ways.

Here,
n = 4
r = 6

= 4^6 ways.
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