Question

The average weight
of all the students in
à class is 58 kg, and
tha:
average
weight of all the 10
girls of the class is
50 kg. If the average
weight of boys is 60
kg. how many
students are there in
the class?
30
40
D D D D
50
60​

Answer 1

Answer:

i think 30 is the right answer