The banker's discount on Rs.1800 at 4% per annum is equal to the true discount on Rs.1872 for the same time at the same rate. Find the time?
Choices
A) 3 months  B) 4 months  C) 5 months  D) 6 months  E) 12 months
Solution   S.I on Rs.1800 = T.D on Rs.1872.   P.W on Rs.1872 is Rs.1800.   Rs.72 is S.I on Rs. 1800 at 4%.   Time	=(100x72 / 4x1800)   = 1 year   = 12 months.   Answer 12 months
<result>E</result>
The banker's discount on Rs.1800 at 4% per annum is equal to the true discount on Rs.1872 for the same time at the same rate. Find the time?