KöMaL 2015 K446
John works for two companies, each paying him by the hour. If he works twice as much for the first company than for the second one during the course of a month, then his monthly wages will be 4/5 as much as they would be if he did it the other way round. How long does he need to work for the first company to earn as much as he is paid by the second company for 10 hours?
Official text KöMaL. Quoted with source.
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