B.D. = Face value – Amount received = Rs (60000 – 58560) = Rs 1440
Now, B.D. is interest on face value for remaining periods.
1440 = 60000 × (12/100) × Remaining period
⇒ Remaining period
Now, bill was drawn on 1st April, 2011 for four months. So legally due date is 4th of August 2011.
The bill was encashed 73 days before this counting days backwards.
August – 4 days
July – 31 days
June – 30 days
May – 8 days
The bill was encashed on (31 – 8) = 23 May, 2011.