Question

Question 72
The average weight of a class of 20 students is 50 kgs. A new student whose weight is 60 kgs replaces an old
student of this class. Hence, the average weight of the whole class decreases by 2 kgs. The weight of the
replaced student is?
a. 80 kgs
b. 40 kgs
c. 60
kgs
d. 100 kgs​

Answer 1

Answer:

I think so 40kg I am not sure