Question
Hilda spent $15 on croissants which costs $1.50 each. For every 3 croissants bought, she received one free croissant. How many croissants did she buy altogether?
3 m

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Hilda spent $15 on croissants which costs $1.50 each. For every 3 croissants bought, she received one free croissant. How many croissants did she buy altogether?