TRICKS TO SOLVE MATHS PROBLEM IN EASY WAY | BITSAT IIT-JEE 2021 | KILLL 350+ | DGV SIR | MATRIX

A national math examination has 4 statics problems. The distribution of the number of students who ansered the question correctly is shown in the chart. If 400 students took the exam and each question was worth 25 points, then what is the average score of the students taking the exam? {:("Question Number","Number of students who solved the question"),(1,200),(2,304),(3,350),(4,250):}