Exams › IBPS PO › Quantitative Aptitude

200 students from school A and 180 from B passed. 20% from A and 10% from B did not pass. How many appeared from both?

1. 420
2. 360
3. 450
4. 400

Correct answer: 450

Solution

School A: 80% passed → total=200/0.8=250. School B: 90% passed → total=180/0.9=200. Both schools: 250+200=450.

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