A teacher gave his students 100 minutes to solve a test. The students had to solve at least 4
questions from Section A, at least 6 questions from Section B, and answer at least 11 questions
in total. If a girl answered each question in Section A in 3 minutes and each question in
Section B in 6 minutes, derive the system of inequalities that would help to know how many
questions she tried to solve in each section. Use to represent the number of questions
answered from Section A and to represent the number from Section B.