Question
One coffee shop was having a special promotion for buffet. Shiyun wanted to invite her pupils for a meal at the coffee shop. Each buffet set costs $12.30. What is the minimum amount that Shiyun must pay for her 20 pupils?

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One coffee shop was having a special promotion for buffet. Shiyun wanted to invite her pupils for a meal at the coffee shop. Each buffet set costs $12.30. What is the minimum amount that Shiyun must pay for her 20 pupils?