- A75%
- B72.5%
- C74.17%
- D78.33%
Step-by-Step Solution
Passes out of 120, i.e. . (78.33% averages the three rates without weighting by batch size.)
Answer: C) 74.17%
Three batches at a coaching centre had pass rates of 80% (40 students), 65% (60 students) and 90% (20 students). What is the overall pass rate?
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