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A student wishes to take either a mathematics course or a biology course, but not both. If there are 4 mathematics courses and 3 biology courses for which the student has the necessary prerequisites, then the student can choose a course to take in how many ways?

A student wishes to take either a mathematics course or a biology course, but not
both. If there are 4 mathematics courses and 3 biology courses for which the student
has the necessary prerequisites, then the student can choose a course to take in how
many ways?

Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
2 years ago
choosing a course (one single course) among 7 courses is possible in 7 ways

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