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

🧠 Explanation:

The average weight of a class with 36 students at 40 kg and 44 at 35 kg is 37.25 kg. Calculate: (36 × 40 + 44 × 35) ÷ (36 + 44) = (1440 + 1540) ÷ 80 = 37.25. This helps students learn weighted averages, useful in academics or real-world data analysis like calculating group statistics.