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1. 12500 students appeared in an exam. 50% of the boys and 70% of the girls cleared the examination. If the total percent of student qualifying is 60% , how many girls appeared in the exam ?

A. 6500

B. 6200

C. 5500

D. 6250

Solution:

\begin{aligned} Number of girls \\ = \frac{1}{2} \times 12500 \\ = 6250 \end{aligned}

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