Find out the number of ways in which 6 rings of different types can be worn in 3 fingers?
120
720
125
729
Explanation:
The first ring can be worn in any of the 3 fingers [3 ways].
Similarly each of the remaining 5 rings also can be worn in 3 ways.
Hence total number of ways
=3×3×3×3×3×3 =$3^6$ =729