It is difficult to say that liberal arts mathematics is relative to the liberal arts mathematics test questions in previous years, not compared with science mathematics.

The "difficulty coefficient" reflects the difficulty of the test questions. The greater the difficulty coefficient, the easier the test questions are. Conversely, the smaller the difficulty coefficient, the more difficult the test questions are.

If the full mark is 150, the average score of candidates is 108 and the average score is 42, then the difficulty coefficient is 108/ 150=0.72.