Q75 / 160 · AP EAMCET 2021 (25 Aug Shift 1) · Mathematics

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

  • A
    56.25
  • Correct answer
    B
    59.25
  • C
    57.25
  • D
    63.25

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 $=\frac{61 \times 25+35 \times 58}{60}$ $$ =\frac{1525+2030}{60}=\frac{3555}{60}=59.25 $$

Hence, the correct answer is option: 'B'.

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