Mahesh, a project manager, made a construction contract with another company which specifies a penalty for delay of completion beyond a certain date as follows: \(₹\)120 for the first day, \(₹\)145 for the second day, \(₹\)170 for the third day, etc., the penalty for each succeeding day being \(₹\)25 more than for the preceding day. How much money Mahesh has to pay as penalty, if he has delayed the work by 24 days?
The penalty amount Mahesh has to pay is \(₹\)_______