Question

You have been cleaning a dispensers for 35 mins and you cleaned 6, how long did it take to clean 1

Answer 1

$\bf \begin{array}{ccll} dispensers&minutes\\ \cline{1-2} 6&35\\ 1&m \end{array}\implies \cfrac{6}{1}=\cfrac{35}{m}\implies m=\cfrac{1\cdot 35}{6} \\\\\\ m=\cfrac{35}{6}\implies m=5\frac{5}{6}\impliedby \textit{5 minutes and 50 seconds}$