Question

The average weight of 20 girls is 30kg, another 30 girls is 40kg and another 50 girls
is 10kg. Find the average weight of all the girls.​

Answer 1

Answer:

hope this will help you

Answer 2

Hyy Dude

The average weight of all the girls is 31.11 kg.

Explanation:

It is given that,

The average weight of 30 girls is 40 kg.

The average weight of 40 girls is 30 kg.

The average weight of 20 girls is 20 kg.

Let W is the average weight of all the girls. Average of number of objects is given by :

W = 31.11 kg

So, the average weight of all the girls is 31.11 kg. Hence, this is the required solution.

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