The best and most correct answer providedfrom your question about the entrance examination paper is the second option which is 2,250. The problem can be solved by:
3-1-1 : 5c3*5c1*5c1 *3!/2! = 750 <span>2-2-1 : 5c2*5c2*5c1 *3!/2! = 1500 </span> Adding the two answers:
