Question

if the average weight of 180 students is 75 kg, find the average weight of the girls if the average weight of the boys is 85 kg and number of boys and girls in the school are 80 and 100 respectively

Answer 1

Answer:

625

Step-by-step explanation:

total weight =180×75=13500

boys total weight =85×100=8500

girls total weight =13500-8500=5000

average =5000/80=625

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Answer 2

Answer:

I hope this will help you.