52 kg
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To find the average weight of the five girls, you need to add the weights of all the girls and divide by the number of girls.
In this case, the total weight of the four girls is 200 kg. If Tola, the fifth girl, weighs 60 kg, you can add her weight to the total weight of the four girls. So the total weight of the five girls is:
To find the average weight, divide the total weight by the number of girls, which is 5.
So the average weight of the five girls is: