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the machine, the rental fee would be RM3000 per month (on a yearly basis), and the daily cost (gas, oil, and driver) would be RM180 for each day the machine is used

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the machine, the rental fee would be RM3000 per month (on a yearly basis), and the daily cost (gas, oil, and driver) would be RM180 for each day the machine is used. If he were to buy it, his fixed cost would be RM20,000, and daily operating and maintenance costs would be RM230 for each day the machine is used. What is the least number of days that the builder would have to use the machine to justify renting rather than buying it?