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This problem trains for: SAT-I, AMC-8, GMAT, Math Kangaroo 3-4, Math Kangaroo 5-6.
Armand Spammington III harvests 25 trays of berries a day. Bertram Flauntingdale IV harvests 21 trays of berries a day. They are both paid the same hourly wages. Over 15 days of work, Armand earned $4800 more than Bertram. How much did he earn?
Armand harvests 4 more trays per day. Over 15 days, the difference in trays becomes:
Calculate how much one earns for harvesting one tray:
At 25 trays a day over 15 days, Armand earns in total: