There are 2 sections A and B in a class, consisting of 26 and 34 students respectively. If the average weight of section A is 50kg and that of section B is 30kg, Find the average of the whole class?  Choose the correct choice from the following choices
A) 35.29 kg  B) 37.25 kg  C) 42.45 kg  D) 38.66 kg  E) 29.78 kg

Rationale: "total weight of 26 + 34 students = 26 * 50 + 34 * 30 = 2320 average weight of the class is = 2320 / 60 = 38.66 kg answer is d"
Answer: D