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A sum of money is borrowed and paid back in two equal annual installments of ₹882, allowing 5% compound interest. What is the sum borrowed? Options - (a) 1640 (b) 1680 (c) 1620 (d) 1700?
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A sum of money is borrowed and paid back in two equal annual installme...
Present worth of Rs. x due T years = 

∴ Principal = Present worth of Rs.882 due 1years +Present worth of Rs.882 due 2years
This question is part of UPSC exam. View all CAT courses
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A sum of money is borrowed and paid back in two equal annual installme...
Solution:

Let the sum borrowed be ₹x.

After 1 year, the amount to be paid back is x(1+5/100) = x(21/20)

After 2 years, the amount to be paid back is x(21/20)(21/20) = x(441/400)

As per the question, the two equal installments are ₹882 each. So, we have:

x(21/20) + x(441/400) = 882 + 882

Simplifying this equation, we get:

x = 1620

Therefore, the sum borrowed is ₹1620.

Answer: (c) 1620
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A sum of money is borrowed and paid back in two equal annual installments of ₹882, allowing 5% compound interest. What is the sum borrowed? Options - (a) 1640 (b) 1680 (c) 1620 (d) 1700?
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