There are 2000 students in a school and among them 10 % of them attends chess class. 50% of the students who are in the chess class are also enrolled for swimming. No other students are interested in swimming so how many will attend the swimming class if all enrolled attends?  Choose the correct option.
A) 1
B) 10
C) 100
D) 50
E) 20
10% of 2000 gives 200. so 200 attends chess and 50% of 200 gives 100   so 100 enrolled for swimming   Answer: 100
<result>C</result>
There are 2000 students in a school and among them 10 % of them attends chess class. 50% of the students who are in the chess class are also enrolled for swimming. No other students are interested in swimming so how many will attend the swimming class if all enrolled attends?