Quantitative Aptitude Notes: Banker’s Discount
Banker's Discount:
Suppose a merchant P buys
goods worth, say Rs. 10,000 from another merchant Q at a credit of say 5
months. Then, Q prepares a bill, called the bill of exchange. P signs this bill
and allows Q to withdraw the amount from his bank account after exactly 5
months.
The date exactly after 5
months is called nominally due date. Three days (known as grace
days) are added to it get a date, known as legally due date.
Suppose Q wants to have
the money before the legally due date. Then he can have the money from the
banker or a broker, who deducts S.I. on the face value (i.e., Rs. 10,000 in
this case) for the period from the date on which the bill was discounted (i.e.,
paid by the banker) and the legally due date. This amount is know as Banker's
Discount (B.D.).
Thus, B.D. is the S.I. on
the face value for the period from the date on which the bill was discounted
and the legally due date.
Banker's
Gain (B.G.) = (B.D.) - (T.D.) for the unexpired time.
Note: When the date of the bill is not given, grace days are not to be added.