The bankers discount of a certain sum of money is Rs. 18 and the true discount on the same sum for the same time is Rs. 15. The sum due is:  Options:  A) 89  B) 90  C) 91  D) 92  E) 93
Sum = (90.D*T.D)/(90.D-T.D)   (18*15)/18-15;   90   ANSWER:90
<result>B</result>
The bankers discount of a certain sum of money is Rs. 18 and the true discount on the same sum for the same time is Rs. 15. The sum due is: