Question 960975
<pre>
Choose the recipient for 1st medal any of 10 ways
Choose the recipient for 2nd medal any of the 9 remaining ways
Choose the recipient for 3rd medal any of the 8 remaining ways
Choose the recipient for 4th medal any of the 7 remaining ways

Answer: 10*9*8*7 = "10 Position 4" = 10P4 = {{{10!/(10-4)!}}} = 5040 ways.

Edwin</pre>