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Ehsan18

  • one year ago

Q50. Twelve students in a class average 70% on a certain test. Eighteen others average 80%. What is the overall average of the thirty students as a percent?

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  1. Ehsan18
    • one year ago
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    the attachment shows the question in better form

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  2. ganeshie8
    • one year ago
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    Twelve students in a class average 70% Eighteen others average 80% so sum of scores of 30 students = 12*70 + 18*80 = 2280

  3. ganeshie8
    • one year ago
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    divide that by 30 for the overall average

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