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AP EAMCET202125 Aug 2021Morning ShiftMathematicsStatisticsActual

The mean marks of 25 boys in a class is 61 and the mean marks of 35 girls in the same class is 58 . Then, the mean of all 60 students is

Options

  1. A56.25
  2. B59.25
  3. C57.25
  4. D63.25

Correct answer

B. 59.25

Step-by-step solution

Number of boys =25 Mean marks of boys =61 Number of girls =35 Mean marks of girls =58 Total mean of all 60 students = 61 25+35 58 60 = 1525+2030 60 = 3555 60 =59.25

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