Question

Question. 28
The mean weight of 16 students of a
school is 40 kg. If a student weighing 25
kg leaves the school, find the mean
weight of the remaining students.
Select from the Answers below
40 kg O 41 kg O 42 kg
43 kg​

Answer 1

Answer:

41 kg

Step-by-step explanation:

Let 16 students be represented by a, b, c, d, e,..., p.

(a+b+c…+p)/16=40 kg => (a+b+c…+p)= 16 x 40= 640 kg

Let p's weight be 25 kg.

Then, a+b+c…+ o= 640-25=615 kg

(a+b+c+…o)/15= 615/15

= 41 kg

Therefore, mean weight of remaining students = 41 kg