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A man borrows Rs. 4000 from a bank at 7 1/ 2% compound interest. At the end of every he pays Rs. 1500 as part repayment of loan and interest. How much does he still owe to the bank after there such installments?

Q: A man borrows Rs. 4000 from a bank at 7 1/ 2% compound interest. At the end of every he pays Rs. 1500 as part repayment of loan and interest. How much does he still owe to the bank after there such installments?

Balance = Rs.[{4000 x (1 x 15/2 x 100)3} - {1500 x (1 + 15/2 x 100)2 + 1500 x (1 + 15/2 x 100) + 1500}] = Rs. 123.25

Rs. 123.25
Rs. 125
Rs. 400
Rs. 469.18

Correct Answer: Rs. 123.25

Explanation:

Balance = Rs.[{4000 x (1 x 15/2 x 100)³} - {1500 x (1 + 15/2 x 100)² + 1500 x (1 + 15/2 x 100) + 1500}]
= Rs. 123.25

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