Kavitha repays her total personal loan of \(Rs.150000\) by paying instalment every month. If the instalment for the first month is \(Rs.2000\) and it increased by \(Rs.200\) every month. What amount of loan still she has to pay after the \(20\)th instalment.
Amount of loan still she has to pay after the \(20\)th instalment \(=Rs.\)