<image> In a promotional activity during the Spring Festival, a shopping mall in our city recorded the sales figures from 10:00 to 15:00 on February 2, 2011. The frequency distribution histogram is shown in the figure. It is known that the sales figure from 10:00 to 11:00 was 30,000 yuan, so the sales figure from 11:00 to 13:00 was ____ yuan.