Classes over summer

<p>So basically I want to double major in psych and econ....i'm a second year and next semester i need to take 3 classes for psych, so i won't have room for econ100b or math16b. I plan on taking one of these during the summer. I'm wondering what class will be easier over the summer rather than during the regular semester. It seems like math might be harder, but can anyone give me feedback about this?</p>