Question
The average weight of 25 students in a classroom was
found to be 52 kg. Later, it was discovered that one student’s weight was taken as 59 kg instead of 49 kg, and another's was taken as 44 kg instead of 54 kg. What is the correct average weight?Solution
ATQ,
Correct average = {(25 × 52) – 59 – 44 + 49 + 54}/25
= {1300 – 103 + 103}/25
= 1300 / 25
= 52 kg
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