Question

. In a class, average weight of 48 students was 54 kg. After adding four new
students, average weight increased by 2.5 kg. What was the average
weight of those 4 new students? (inkg)​

Answer 1

Answer:

Total weight of 48 students = 54x48

= 2592

New Wt of 52 students = 56.5x52

=2938

Wt. of 4 new students =346kg

Av. Wt. of new students =346/4

= 86.5kg