Question

four students spent 12 dollars on school lunch. At this rate, find the amount 10 students would spend on the same school lunch

Answer 1

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Answer 2

`\bf \begin{array}{ccll} students&\$\\ \cline{1-2} 4&12\\ 10&x \end{array}\implies \cfrac{4}{10}=\cfrac{12}{x}\implies \cfrac{2}{5}=\cfrac{12}{x}\implies 2x=60 \\\\\\ x=\cfrac{60}{2}\implies x=30`