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A school has only four classes that contain 10, 20, 30, and 40 students respectively. The pass percentage of these classes are 20%, 30%, 60%, and 100% respectively. Find the pass % of the entire school.

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A school has only four classes that contain 10, 20, 30, and 40 students respectively. The pass percentage of these classes are 20%, 30%, 60%, and 100% respectively. Find the pass % of the entire school. Answer: 66%

Step 1: Total students 10+20+30+40=100 Step 2: Total passed students 2+6+18+40=66 Step 3: Overall pass percentage 66/100×100=66% Final Answer: 66%

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.