The bankers discount and the true discount of a sum at 10% per annum simple interest for the same time are Rs.100 and Rs.80 respectively. What is the sum and the time?

A) Sum = Rs.400 and Time = 5 years

B) Sum = Rs.200 and Time = 2.5 years

C) Sum = Rs.400 and Time = 2.5 years

D) Sum = Rs.200 and Time = 5 years

View Answer
Option – C.