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 percentage of successful students?
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- 75%
- 60%
- 50%
- 40%
Correct Option: B
On the basis of given graph in question ,
Total number of students = 2 + 6 + 10 + 3 + 8 + 4 + 7 + 5 = 45
Number of failures = 2 + 6 + 10 = 18
Number of successful students = 45 – 18 = 27
| ∴ Required percentage = | × 100 | Total number of students |
| Required percentage = | × 100 = 60% | 45 |
