The following table shows the toll tax paid by drivers and the number of vehicles on that particular day. \begin{tabular}{|l|l|l|l|l|l|} \hline Toll tax (in ₹) & \( 30-40 \) & \( 40-50 \) & \( 50-60 \) & \( 60-70 \) & \( 70-80 \) \\ \hline Number of vehicles & 80 & 110 & 120 & 70 & 40 \\ \hline \end{tabular} Based on the above information, answer the following questions. (i) What is the mean of toll tax received by NHAI? (ii) What is the mode of toll tax received by NHAI?
