SBI PO Prelims 8 Mar 2025 Shift 3 Paper

In a class with a certain number of students if one new student weighing 30 kg is added, then the average weight of the class is increased by 2 kg. If 2 new student having an average weight of 27 kg is added, then the average weight of the class increases by 3kg over the original average. What is the original average weight (in kg) of the class?