Question
Sandeep borrowed Rs. 20,000 from his friend at compound interest of 20% p.a., compounding annually. He added Rs. 'K' to this money and lent the total sum to Raj at simple interest of 10% p.a. for 2 years. If total profit earned by Sandeep at the end of 2 years is Rs. 1,200, then find the value of 'K'.
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