- A64
- B66
- C130
- D65
Step-by-Step Solution
Boys' total = . Girls' total = . Class mean = 3300 ÷ 50 = 66. (65 wrongly averages 60 and 70.)
Answer: B) 66
The table gives the mean marks of boys and girls in a class. What is the mean mark of the whole class?
Class 8Mean and MedianData Handling
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