There are two sections A and B of a class, consisting of 36 and 44 students' respectively. If the average weight of section A is 40kg and that of section B is 35kg, find the average weight of the whole class.

• ক 35 kg
• খ 42.5 kg
• গ 37.25 kg ✅ সঠিক উত্তর
• ঘ 30 kg