| Class | Frequency |
| 0 - 5 | 4 |
| 5 - 10 | 5 |
| 10 - 15 | 7 |
| 15 - 20 | 12 |
| 20 - 25 | 7 |
| 25 - 30 | 5 |
A) 15
B) 16
C) 17
D) 18
Correct Answer: B
Solution :
Not available
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