Given:

• 60% students passed the half-yearly exam.
• Of them, 70% passed the annual exam.
• From the remaining 40% (who failed half-yearly), 80% passed the annual exam.

Assume total students = 100

✅ From 60 students who passed half-yearly:
→ 70% of 60 = 42 passed annual exam.

✅ From 40 students who failed half-yearly:
→ 80% of 40 = 32 passed annual exam.

✅ Total students who passed annual exam = 42 + 32 = 74
Final Answer: 74%