The average weight of 5 student in a class is 25.8kg .When a new student joins them , average weight increaes by 3.9kg. Then find approximate weight of the new student
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Average weight of 5 students=28.5kg
Sum of weights= 28.5×5=142.5kg
Sum of weights with the new student= 142.5+3.9= 146.4kg
Therefore the weight of the new student is= 146.4÷6= 24.4 kg
Hope this helps you!!
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