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Jaspal Singh repays his total loan of \(₹118000\) by paying every month starting with the first instalment of\(₹1000\). If he increases the instalment by \(₹100\) every month, what amount will be paid by him in the \(30^{th}\) instalment? What amount of loan does he still have to pay after the \(30^{th}\) instalment?
 
He still has to pay the loan amount after the \(30^{th}\) installment is.