Question

The average weight of 20 boys is 43 kgs and the average weight of 5 other boys is 42kgs .what is the average weight of all 25 boys
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Answer 1

Answer:

85 kg weight of all boys

Step-by-step explanation:

I hope help this

Answer 2

Step-by-step explanation:

Let the total weight of 20 boys be x and total weight of 5 boys be y.

x/20=43

=>x=860

Now,

y/5=42

y=210

Total weight of 25 boys = x+y

=860+210

=1070 kg

So, Avg. weight of 25 boys = 1070/ 25

=42.8