Multiple choice

Average weight of 45 students in a class was calculated as 36kg. Later it founded that weight of two student take as wrong data. Taking 34 kg instead of 32 kg and taking 44 kg instead of 46kg. Find actual average?

  1. 68

  2. 36

  3. 39

  4. 58

  5. 26

Reveal answer Fill a bubble to check yourself
B Correct answer
AI explanation

Using the error correction method for averages, the net change in the total weight equals the sum of the correct data minus the sum of the wrong data. The net change is 32 plus 46 minus 34 minus 44, resulting in a net change of 0 kg. Since the overall total weight does not change, the actual average remains the same as the originally calculated average of 36 kg.