Buy three science books and six stories 168 yuan. How much does it cost to buy six undergraduate courses and three story books?

It costs 168 yuan to buy three science and technology books and six story books, and how much does it cost to buy six undergraduate courses and three story books?

The conditions are not sufficient, and the specific values cannot be obtained. Give a few qualified examples:

3* 1+6*27.5= 168,6* 1+3*27.5=88.5;

3*2+6*27= 168,6*2+3*27=93