The mean weight of a class of 34 students is 46.5 kg. If the weight of the new boy is included, the mean is rises by 500 g. Find the weight of the new boy.
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1
Answer:
64 kg
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Answered by
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Answer:
mean of 34 students = 46.5 kg
new mean of 35 students =46.5+0.5=47
total weight of 34 students
= 46.5*34
= 1581 kg
total weight of 35 students
= 47*35
=1645 kg
weight of new boy = 1645-1581
=64 kg . answer
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