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Permutations and Combinations
In how many ways can 5 identical rings can be worn on 4 fingers?
$\begin{array}{1 1} ^5C_4 \\ 4^5 \\ 5^4 \\ 5! \end{array}$
jeemain
math
class11
ch7
permutations-and-combinations
fundamental-principle-of-counting
easy
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asked
Aug 31, 2013
by
rvidyagovindarajan_1
edited
Apr 5, 2016
by
meena.p
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1 Answer
Since no condition is given,
Any of the rings can be worn on any finger.
i.e., Each ring has 4 options.
There are 5 rings.
The required no. of ways = $4^5=1024$
answered
Aug 31, 2013
by
rvidyagovindarajan_1
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