Cathy took a loan of ₹24000 from a bank at 10% per annum for 112 years. Find the amount to be repaid after 112 years if the interest is compounded half-yearly?

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graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.