Direction: Study the following histogram of marks in mathematics (out of 50) of students in a class and answer the following questions.
-
The total number of students in the class is :
-
- 120
- 125
- 130
- 135
Correct Option: D
From the given above histogram , we have
Number of students in the class interval 25-30 = 15
Number of students in the class interval 30-35 = 20
Number of students in the class interval 35-40 = 40
Number of students in the class interval 40-45 = 50
Number of students in the class interval 45-50 = 10
Total students in the class ⇒ 15 + 20 + 40 + 50 + 10 = 135
