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:
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 = $$\dfrac{1421.5}{26} = 54.67 kg$$
Create a FREE account and get:
Quick, Easy and Effective Revision
By proceeding you agree to create your account
Free CAT Formulae PDF will be sent to your email address soon !!!
