Question

The number of ways in which 6 rings can be worn on the four fingers of one hand is

• A. $4^6$
• B. ${}^6{C}_4$
• C. $6^4$
• D. None of these

Answer 1

The correct option is D None of these

The four fingers can be selected in ${}^5{C}_4=5$ ways

And 6 rings can be placed in ${}^6{C}_4$ ways

So total no.of ways are $5{\times }^6{C}_4$