Question

Edith took 18 tests in the first weeks of the school year. If there 16 weeks in the semester,how many total tests should Edith expect to take?30 tests

Answer 1

We know that Edith took 18 tests in 9 weeks, this means that in average she took 2 tests per week. Since the semester has a total of 16 weeks she will expect to take 32 tests.