What is the average of even numbers from 1 to 81?
- 40
- 41
- 42
- none of these
Explanation
tot = (last - first + 2) ÷ 2
tot = (80 - 2 + 2) ÷ 2
tot = 80 ÷ 2
tot = 40
Total even numbers from 1 to 81 = 40
ND27-5-2023
Related MCQs
- 425
- 475
- 500
- None of these
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- 19
- 18
- 17
- None of these
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- 40
- 30
- 35
- None of these
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- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- Sum of all observations × Total number of observations
- Sum of all observations ÷ Total number of observations
- Total number of observations ÷ Sum of all observations
- None of these