please answer and if you will spam your answer will be reported the answer of this question is 46.3 kg and I want the explanation
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Step-by-step explanation:
average weight of boys = 49 kg
average weight of girls = 43 kg
total girls = 18
total boys = 40 - 18 = 22
average weight of the class
= total average weight of boys + total average weight of girls
total no. of students
= 22 × 49 + 18 × 43 / 40
= 1078 + 774 / 40
= 1852 / 40
= 46.3
so the average weight of the class the 46.3 kg
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