In how many ways can five different rings be worn on four fingers of one hand? Choose the correct choice from the following:
A) 10  B) 5  C) 15  D) 16  E) 18
Required number of ways = ways of selecting 4 objects out of 5 given objects   = 5C4 = 5*4*3*2/24= 
<gadget id="calculator">5*4*3*2/24</gadget>
<output>5</output>
5   Answer 5
<result>B</result>
In how many ways can five different rings be worn on four fingers of one hand?