Marks | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | Total |
No. of Student | 10 | \[{{f}_{1}}\] | 15 | \[{{f}_{2}}\] | 30 | 10 | 100 |
A) 16
B) 13
C) 14
D) 15
E) None of these
Correct Answer: E
Solution :
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