Owner of the company
The company's owner, with extensive administrative activity, wants to sell the obsolete three machines at the price of CZK 1000 per 1 machine with a six-month warranty period. If the machine breaks down during this period, the owner will return the employee's money and deliver 100 CZK to remove unused machines. Determine the most number of machines that the owner should sell off, assuming a ten percent failure rate and making a lot of money.
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