What's a student's daily workload/schedule like for maintaining 3.5+? How about 3.9+?

Colleges & Universities California Institute of Technology
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<p><octalc0de> office hours are cheating</octalc0de></p>

<p>Heh, yup. Don’t mean to toot my own horn here, but when all of my friends and I combined aren’t smart enough to solve the problem, it’s time to play dirty ;)</p>