Math, asked by sangeetagoyal79, 10 months ago

the mean weight of 90 boys and 40 girls is 65 kg and 48 kg respectively find the mean weight of all the students

Answers

Answered by lisha2425

2

Answer:

56.5kg

Step-by-step explanation:

mean weight = 65kg and 48kg

Mean weight = sum of mean weight/ no. of mean weight

Mean weight =( 65+48)kg/2=113kg/2

Mean weight= 56.5kg

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