Shopping change
A notebook costs CZK m, and a pencil costs the same. The ruler costs CZK n. The brush costs CZK 6. George bought 3 notebooks, 2 pencils, a ruler, and a brush. He paid with a fifty-crown note. How much did he get back?
Final Answer:
You need to know the following knowledge to solve this word math problem:
algebraUnits of physical quantitiesGrade of the word problem
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