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luisz Group Title

What is the average(arithmetic mean) of the positive integers from 1 to 50, inclusive? Note: please tell the shortcut for this PSAT question.

  • one year ago
  • one year ago

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  1. punnus Group Title
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    sum of n terms (first+last)*n/2 average of n terms is (first+last)/2

    • one year ago
  2. luisz Group Title
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    wait

    • one year ago
  3. luisz Group Title
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    so

    • one year ago
  4. luisz Group Title
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    50+1

    • one year ago
  5. luisz Group Title
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    51

    • one year ago
  6. luisz Group Title
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    /2

    • one year ago
  7. punnus Group Title
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    yes

    • one year ago
  8. luisz Group Title
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    25.5?

    • one year ago
  9. luisz Group Title
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    is that all?

    • one year ago
  10. punnus Group Title
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    yes The sum of first 50 terms inclusive is an Arithmetic progression

    • one year ago
  11. luisz Group Title
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    ahh

    • one year ago
  12. luisz Group Title
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    ty

    • one year ago
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