Question
A stationery shop was having promotion for markers. For every 3 markers bought, 1 marker would be given free. Each marker costs $3. Julie paid $18 for some markers. How many markers did she get altogether?
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A stationery shop was having promotion for markers. For every 3 markers bought, 1 marker would be given free. Each marker costs $3. Julie paid $18 for some markers. How many markers did she get altogether?