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:
Select the correct option:
A) 1360  B) 1450  C) 1600  D) 1800  E) None
Sol.   Sum = S.I. * T.D. / (S.I)-(T.D.) = 85 * 80 / (85 - 80) = Rs.1360.   1360nswer 1360
<result>A</result>
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: