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Q: The simple interest and the true discount on a certain sum for a given time and at a given rate are Rs 85 and Rs 80 respectively. The sum is
A. Rs 1,800     B. Rs 1,450    
C. Rs 1,360     D. Rs 6,800

Answer and Explanation

Answer:Rs 1,360    

Explanation:
Sum = (SI * TD) / (SI) – (TD) = (85 * 80) / (85 – 80) = Rs 1,360

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