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Omni-MATH / Last Thursday, each of the students in M. Fermat's class brought one piece of…

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problem

Last Thursday, each of the students in M. Fermat's class brought one piece of fruit to school. Each brought an apple, a banana, or an orange. In total, 20%20\% of the students brought an apple and 35%35\% brought a banana. If 9 students brought oranges, how many students were in the class?
Plain-text mathematical notation (without MathML)
Last Thursday, each of the students in M. Fermat's class brought one piece of fruit to school. Each brought an apple, a banana, or an orange. In total, 20% of the students brought an apple and 35% brought a banana. If 9 students brought oranges, how many students were in the class?
Original LaTeX notation
Last Thursday, each of the students in M. Fermat's class brought one piece of fruit to school. Each brought an apple, a banana, or an orange. In total, $20\%$ of the students brought an apple and $35\%$ brought a banana. If 9 students brought oranges, how many students were in the class?

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