Question

there are 50 students In a class of which 40 are boys the average weight of the class is 44 kilogram and that of the girls is 40 kilogram find the average weight of the boys

Answer 1

Hi there!

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What is Mean?

The average of a given set of numbers is called the Arithmetic mean, or simply the mean, of the given numbers.

Mean = $\frac{Sum \: of \: observations }{Number \: of \: observations }$

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Answer 2

Answer:

The weight of 50 students in a class = 44kg

Then the total weight of 50 students = 50×44= 2200 kg

No. Of girls =50-40=10

Total weight of girls =10×40

=400kg

Average weight of boys is= 2200-400

=1800kg

Each boy 1800/40

45 kg