Question

The average weight of a group of 25boys was calculated to be 25kg.It was later discovered that one weight was misread as 45kg instead of 54kg .Calculate the correct average weight

Answer 1

Answer:

Explaination:

sum of the weight of students = 25 × 25

= 625 kg

correct sum of weight = (625 - 45 + 54) kg

= 634 kg

therefore, correct average

$= \frac{634}{25} = 25.36 kg$