There are twice as many boys as there are girls If 30% of the boys and 45%of the girls failed in the exams then what percentage of the class passed the exams?

A. A. 35%
B. B. 40%
C. C. 52%
D. D. None of these
Correct Answer: D. D. None of these

The calculation shows that 65% of the class passed the exams, which is not among the given options, making "None of these" correct.

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