The bankerâ€™s discount of a certain sum of money is Rs. 60 and the true discount on the same sum for the same time is Rs.54. The sum due is	Choose the correct answer.
A) 210 B) 280 C) 360 D) 720 E) None
Sol.   Sum = B.D. * T.D. / B.D. - T.D. = Rs.[60 *54 / 60 - 54] = Rs. [72 * 60 / 6] = Rs. 720   Answer 720
<result>D</result>
The bankerâ€™s discount of a certain sum of money is Rs. 60 and the true discount on the same sum for the same time is Rs.54. The sum due is