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Question 132
The average weight of 16 boys in a class is 60.25 kg and that of the remaining 10 boys is 45.75 kg. The average weight of all boys in the class is:
Solution
Given, Average weight of 16 students = 60.25 kg
Then, Total weight of 16 students = 60.25*16 = 964 kg
Average weight of 10 students = 45.75 kg
Then, Total weight of 10 students = 45.75*10 = 457.5 kg
Then, Total weight of 26 students = 964+457.5 = 1421.5 kg
Therefore, Average weight of 26 students = $$\dfrac{1421.5}{26} = 54.67 kg$$
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