James had two browsers on his computer. In each browser, he opened three windows, each with ten tabs. What's the total number of tabs he opened in all the browsers together? Let's think first. Chain of thought:
The total number of tabs in three windows of each browser is 10 * 3 = 30 tabs. If James had two browsers on his computer and in each browser he opened three windows, the total number of tabs in the two browsers is 2 * 30 = 60 tabs.
Therefore, the answer is 60.