Please tell me the solution of no 18 marked in circle with double stroke.

18. Mr. Dubey borrows Rs. 1,00,000 from State Bank of India at 11% p.a. compound interest. He repays
Rs. 41,000 at the end of 1st year and Rs. 47,700 at the end of 2nd year. Find the amount outstanding at the beginning of 3rd year.                                                                                                                  [ICSE 2010]

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