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The difference between the simple interest and the true discount on a certain sum of money foe 6 months at 6% is Rs. 27. Find the sum?

Rs. 30900
Rs. 39000
Rs. 20900
Rs. 30600

Correct Answer: Rs. 30900

Explanation:

Req. amount = [27 x (100 + 6 x 1/2) x 100] / [(6 x 1/2)²]
= (2700 x 103) / 9 = Rs. 30900

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