Question
Download Solution PDFThe average weight of 28 students in a class is 52.25 kg, and that of the remaining 12 students is 48 kg. Find the average weight of all the students in the class. (Approximately)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Average of 28 students = 52.25 kg
Average of 12 students = 48 kg
Concept used:
\(Average = {Sum\; of \;observations \over Total\; number\; of\; observations}\)
Calculation:
From the given data,
Weight of 28 students = 28 × 52.25 = 1463
Weight of 12 students = 12 × 48 = 576
Average = \(1463\;+\;576 \over40\)
Average = \(2039 \over 40\)
Average = 50.975
∴ The average weight of all the students in the class is 50 .975.
Last updated on Jun 12, 2025
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