A table Of the given information is formed as
\\(\\begin{array}{|c|c|c|c|c|}\\hline \ ext { Number of hours } & {4} & {8} & {12} & {24} \\\\ \\hline \ ext { Parking charges (in Rs) } & {60} & {100} & {140} & {180} \\\\ \\hline\\end{array}\\)
The ratio of parking charges to the respective number Of hours (Rs/ hour) can be calculated as
\\(\\frac{60}{4}=15, \\quad \\frac{100}{8}=\\frac{25}{2}, \\frac{140}{12}=\\frac{35}{3}, \\frac{180}{24}=\\frac{15}{2}\\)
As each ratio is not same, therefore, the parking charges are not in a direct proportion to the parking time.