Seven people enter a race. There are 4 types of medals. Winner - platinum, runner up - gold, next two racers - silver and the last 3 - bronze. Ways to do it?  Choose the most appropriate option.
A) 7!/3!	B) 7!/2!3!	C) 1*1*2!*3!	D) 7*6*2!*3!	E) 7*6*5*4
let me take the approach adopted by you..   platinum-7 different people..   gold- remaining 6 different people..   silver- 2 out of remaining 5=5C2= 5!/2!3!...   bronze - 1 as all the three remaining are getting it..   total ways= 7*6*5!/2!3!=7!/2!3!.   ANS:7!/2!3!
<result>B</result>
Seven people enter a race. There are 4 types of medals. Winner - platinum, runner up - gold, next two racers - silver and the last 3 - bronze. Ways to do it?