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the mean weight of 90 boys and 40 girls is 65 kg and 48 kg respectively find the mean weight of all the students
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Answer:
mean weight of 90 boys=65kg
mean weight of 40 girls. 48 kg
Step-by-step explanation:
multiply. 90 to 65
and 40 to 48 and add them both
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Answer:
this is ur answer...........
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