Math, asked by Tarunsalav, 1 year ago

The mean weight of 30 students of a class is 60.2 kg. Two students of weight is 50 kg and 67 kg left the class. Find the mean weight of the remaining students.

Answers

Answered by deeptyp50
20

mean weight=sum of all weight / no of students

in this case, 60.2 = Sum(30)/ 30

sum (30) = 60.2×30

2 students with 50kg and 67kg left i.e, 117kg

∴ remaining students is 28

mean of 28 students = (sum of 30 students - 117) / 28

⇒(60.2×30) - 117 / 28

⇒(1806 - 117) / 28

⇒ 60.3

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