A man borrows Rs. 6000 at 5% compound interest. If he repays Rs. 1200 at the end of each year, find the amount outstanding at the beginning of the third year.
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Solution
P=6000 per month , R=5%
After 1 year
Interest=PRT100
=6000×5×1100
=300
New principle will be 6000+300=6300 but Rs 1200 was repaid
⟹P′=6300−1200=5100
After 2 years
Interest=P′RT100
=5100×5×1100
=255
Principle for 3rd year =5100+255=5355but again Rs 1200 was repaid