The average weight of a team of 20 people was calculated to be 59.8 kg and it was later discovered that one weight was misread as 68 kg instead of 77 kg. The correct average weight is:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 60.25 kg
Given that
Average weight of a team of 20 peoples = 59.8 kg
A weight misread 68 kg instead of 77 kg
Sum of weghts of the team = 20 × 59.8 = 1196 kg
According to the question
The correct sum of the team = 1196 - 68 + 77 = 1205 kg
Hence, the average of the team = 1205/20 = 60.25 kg