Question
A shop was having promotion for pencils. For every 3 pencils bought, 1 pencil would be given free. Each pencil costs $3. Xylia paid $9 for some pencils. How many pencils did she get altogether?
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A shop was having promotion for pencils. For every 3 pencils bought, 1 pencil would be given free. Each pencil costs $3. Xylia paid $9 for some pencils. How many pencils did she get altogether?