Is there anybody out there who is kind enough to answer my question? <br/><br/><br/><br/>Which is correct? <br/><br/>a. He studied (for) as many as three hours. <br/><br/>b. He studied (for) as much as three hours. <br/><br/><br/><br/>Time is uncountable, but hour is countable. That is the point of this question. <br/><br/><br/><br/>Thank you in advance.