Question

A 15oz tea at a certain restaurant has 135 calories. How many calories are there in a 22 oz iced tea ?

Answer 1

$\bf \begin{array}{ccll} oz&calories\\ \cline{1-2} 15&135\\ 22&x \end{array}\implies \cfrac{15}{22}=\cfrac{135}{x}\implies 15x = 2970 \\\\\\ x = \cfrac{2970}{15}\implies x = 198$