Nov25
17.06.2021 •
Mathematics
The mean of the masses of a group of four students is 30 kg. One student joins the group. The mean of the masses og the five students is 32 kg. Find the mass of the student who joined the group.
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Ответ:
Mass of New student who joined the group will be :
Ответ:
The answer is
c. t/3.2 = 15.1
201.6 = 11.2 + c