The average weight of 45 boys in a class is 52 kg. 5 of them whose average weight is 48 kg leave the class and other 5 boys whose average weight is 54 kg join the class. What is the new average weight (in kg) of the class?
1
\(51{\rm{}}\frac{1}{3}\) kg
2
\(52{\rm{}}\frac{2}{3}\) kg
3
\(52{\rm{}}\frac{1}{3}\) kg
4
43.42 kg
5
None of the above