Question
One food outlet was having a special promotion for buffet. Zara wanted to invite her pupils for a meal at the food outlet. Each buffet set costs $13.40. What is the minimum amount that Zara must pay for her 20 pupils?

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One food outlet was having a special promotion for buffet. Zara wanted to invite her pupils for a meal at the food outlet. Each buffet set costs $13.40. What is the minimum amount that Zara must pay for her 20 pupils?