Explanation:

- Let's denote the number of boys as \( b \) and the number of girls as \( g \).

- According to the problem, \( b + g = 12500 \).

- 50% of the boys cleared the exam, so \( 0.5b \) boys passed.

- 70% of the girls cleared the exam, so \( 0.7g \) girls passed.

- The total percentage of students who passed is 60%, so \( 0.6 \times 12500 = 7500 \) students passed.

- The equation from the total passes becomes: \( 0.5b + 0.7g = 7500 \).

By solving these equations simultaneously:

$$ b + g = 12500 $$

$$ 0.5b + 0.7g = 7500 $$

You will find that:

$$ g = 6250 $$

- Option 1: 6500 - Higher than calculated

- Option 2: 6200 - Less than calculated

- Option 3: 5500 - Much less than calculated

- Option 4: 6250 - ?? Correct Answer