Question
A shop was having promotion for markers. For every 4 markers bought, 1 marker would be given free. Each marker costs $4. Ivory paid $16 for some markers. How many markers did she get altogether?
4 m

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A shop was having promotion for markers. For every 4 markers bought, 1 marker would be given free. Each marker costs $4. Ivory paid $16 for some markers. How many markers did she get altogether?