Question

The average weight of 20 boys in a class is 160 kg and that of the remaining 5 boys is 50 kg. Find the average weight of all the boys in the class?​

Answer 1

Answer:

avg wt= total weight/ no of student

160= total wt/ 20

total wt = 3200 kg

remaining 5 boy wt=50

so total avg wt= total wt /no of student

3250/25=130