Three Typists Axe, Wye and Zed working together 3 hours per day and can type 720 pages in 12 days. In a day Wye types as many pages more than Axe as Zed types as many pages more than Wye. The number of pages typed by Axe in 9 hours equal to the number of pages typed by Zed in 3 hours. How many pages Zed types in each hour?
Workdone by all 3 in 1 hr = 720/(12*3) = 720/36 = 20pages
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