The average marks of 30 boys is 88. When the top two scores are excluded, the average marks reduce to 87.5. If the top two scores differ by 2, then the highest marks obtained is:

What is the average number of students in B.Tech (220), M.Tech (140), and B.A (4344) courses together?

A class has two sections A and B, which have 36 and 44 students respectively. If the average weight of section A is 40 kg and that of section B is 35 kg, find the average weight of the whole class.