Question
One canteen was having a special promotion for dinner. Anna wanted to invite her pupils for a meal at the canteen. Each dinner set costs $15.15. What is the minimum amount that Anna must pay for her 23 pupils?

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One canteen was having a special promotion for dinner. Anna wanted to invite her pupils for a meal at the canteen. Each dinner set costs $15.15. What is the minimum amount that Anna must pay for her 23 pupils?