Hours per week of work are different from class to class and do not reflect complexity and the level of challenge in class, with some exceptions. D’s very easy Honors English where she learned nothing and got an easy A was extremely time consuming because of the requirement to read “boring and stupid” novels, her words. She much rather would do something else and learn more, but it was a requirement for her major. While interesting for her class of Papermaking maybe considered easy by most, and it was not at all. She managed an A, but spent enormous amount of time on assignments, just like in any art related class though. On the other hand, not much time on work was spent in Gen. Chem. class, easy A, all tests are 100%+ and a job offer from prof. to be his SI. College Stats was another easy A.
On the other hand, only one exam in Orgo class required at least 30 hrs of prep., so in the week of test, 10 hrs on Orgo would not be even close.