Direction: The histogram shows the marks obtained by 45 students of a class. Look at the histogram and answer the questions.
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If the pass mark be 30, what is the number of failures?
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- 2
- 6
- 18
- 20
Correct Option: C
According to question , we seen in above bar graph
Number of students who obtained 0 - 10 marks = 2
Number of students who obtained 10 - 20 marks = 6
Number of students who obtained 20 - 30 marks = 10
Total number of failures = 2 + 6 + 10 = 18
