KöMaL 2017 K560
There were 30 candidates taking an exam. The average score of those who failed was 60, and the average score of those who passed was 84. The average score of all candidates was 80. How many of them passed the exam?
Official text KöMaL. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
Similar problems
These problems have the most words in common with this statement.