Two classes X and Y have students 32 and 30. Average of X is 45 and Y is 50. Find average of both the class.
- A. 54.32
- B. 47.42 ✓
- C. 61.23
- D. 40.25
Correct Answer: B. 47.42
Explanation
Total sum = (32 \times 45) + (30 \times 50) = 1440 + 1500 = 2940. Overall average = \frac{2940}{32+30} = \frac{2940}{62} \approx 47.42.
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