15. The mean weight of 120 students in
the second year class of a college is
56kg. If the mean weight of boys and
that of the girls in the class are 60 kg
and 50 kg respectively, then the
number of boys and girls in the class
are respectively:
a. 72,64
b. 38, 64
c. 72,48
d. None of these
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Answer:
c 72,48 is the answer mark me brainliest
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