Your Answer is
Correct Answer is F
Explanation
The number of people in Mr.Smith's class with 41-50 points is 2 people, and the number of people in Mr.Cho's class with 41-50 points is 4 times less than the number of Mr.Smith's class with 41-50 points. , so the number of people who scored 41-50 in Mr.Cho's class is 4*2-3=5 people