In a school, there are 35 students in class 2A and 40 in class 2B. The mean score for class 2 in an English Literature examination is 60.0 and that for 2B in the same paper is 52.5. Find, to one place of decimal, the mean for the combined classes
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Correct Answer: Option B
Explanation:
Total score for 2A & 2B = 4200
mean score = \(\frac{4200}{40 + 35}\)
= \(\frac{4200}{75}\)
= 56
Total score for 2A & 2B = 4200
mean score = \(\frac{4200}{40 + 35}\)
= \(\frac{4200}{75}\)
= 56