In a dance competition the points in each round for the first,second,third and fourth position were 1000,500,200,100 . No other points were given. Reney participated in several rounds in the competition and the product of her score was 100000. In How many rounds did she participate?
Choose the correct choice from the following answers:  A) 4  B) 2  C) 5  D) Cannot be determined  E) 20
Correct answer is D because we are given that there won't be any points awarded for rounds other than 1st four position.   Thus, it may happen that she played 50 rounds out of only 7 rounds were there in which she was awarded some points.
<result>D</result>
In a dance competition the points in each round for the first,second,third and fourth position were 1000,500,200,100 . No other points were given. Reney participated in several rounds in the competition and the product of her score was 100000. In How many rounds did she participate?