If an industrial printer prints 7,200 pages in an hour, then it will print them in an hour and twenty minutes:
So in one hour is printed 7200 pages, and 20 minutes is 60minutes (1 hour) divided by 3 so is only sum 7200 + 7200/3 = 7200+2400=9600.
A complete detour, this isn't a direct solution.
Rute Bezerra de Menezes Gondim
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