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question

A mechanic charges different rates to repair the tires of trucks and cars. For each truck tire that is repaired, the mechanic will charge

60 and for each car tire that is repaired, the mechanic will charge

40. On Thursday, the mechanic repairs 6 truck tires and 4 car tires. On Friday, the mechanic repairs 12 car tries and doesn't repair any truck tires. How much more revenue did the mechanic earn on the day with higher revenue?

Plain-text mathematical notation (without MathML)

A mechanic charges different rates to repair the tires of trucks and cars.  For each truck tire that is repaired, the mechanic will charge 60andforeachcartirethatisrepaired,themechanicwillcharge40.  On Thursday, the mechanic repairs 6 truck tires and 4 car tires.  On Friday, the mechanic repairs 12 car tries and doesn't repair any truck tires.  How much more revenue did the mechanic earn on the day with higher revenue?

Original LaTeX notation

A mechanic charges different rates to repair the tires of trucks and cars.  For each truck tire that is repaired, the mechanic will charge $60 and for each car tire that is repaired, the mechanic will charge $40.  On Thursday, the mechanic repairs 6 truck tires and 4 car tires.  On Friday, the mechanic repairs 12 car tries and doesn't repair any truck tires.  How much more revenue did the mechanic earn on the day with higher revenue?

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task_id: 4f1f5673-dfb4-5c66-9e8e-fe1732ca697b
task_key: en--test--4f1f5673-dfb4-5c66-9e8e-fe1732ca697b
task_revision_id: 2
config / split: en / test

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