## Exam Style Question## Worked solutions to typical exam type questions that you can reveal gradually |

Question id: 155. This question is similar to one that appeared in a GCSE Higher paper (specimen) for 2017. The use of a calculator is allowed.

Students in Year 10 at Riverdale High School can choose two different courses for their Friday afternoon elective lessons. Their two choices must be from two different school departments.

- The Physical Education department offers 5 different courses;
- The Performing Arts department offers 6 different courses;
- The Science department offers 4 different courses.

How many different ways are there of choosing two courses?

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