If the average of 5 students is given and one student leaves, how is the new average calculated?
- Add the leaving student’s marks to the total and divide by 4
- Subtract the leaving student’s marks from total sum, then divide by 4
- Multiply the original average by 4
- None of these
Explanation
First, calculate the total sum: average × 5
Then subtract the marks of the student who left, and divide the result by 4 to get the new average.
Related MCQs
- 425
- 475
- 500
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 19
- 18
- 17
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 40
- 30
- 35
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 30
- 25
- 35
- 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
اس سوال کو وضاحت کے ساتھ پڑھیں
