Question
Vikas borrowed Rs. 10,000 from his friend at compound interest of 20% p.a., compounding annually. He added Rs. 'Z' to this money and lent the total sum to Mohan at simple interest of 10% p.a. for 2 years. If total profit earned by Vikas at the end of 2 years is Rs. 800, then find the value of 'Z'.
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