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A man borrows ₹8000 and agrees to repay ...

A man borrows `₹8000` and agrees to repay with a total interest of `₹1360` in 12 monthly installments, each installment being less than the preceding one by `₹40`. Find the amount of the first and last installment.

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The correct Answer is:
Amount of the first instalment is Rs 1000 and that of the last instalment is Rs 560
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