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Aptitude - Banker's Discount - Discussion

Discussion Forum : Banker's Discount - General Questions (Q.No. 10)
Banker's Discount
10.

The banker's gain on a certain sum due 1 1 years hence is 3 of the banker's
2 25

discount. The rate percent is:

5 1 %
5
9 1 %
11
8 1 %
8
6 1 %
6
Answer: Option
Explanation:

Let, B.D = Re. 1.

Then, B.G. = Re. 3 .
25

T.D. = (B.D. - B.G.) = Re. 1 - 3 = Re. 22 .
25 25

Sum = 1 x (22/25) = Rs. 22 .
1-(22/25) 3

S.I. on Rs. 22 for 1 1 years is Re. 1.
3 2

Rate = 100 x 1 %
= 100 = 9 1 %.
11 11
22 x 3
3 2

Discussion:
13 comments Page 1 of 2.
Shashi said:   6 years ago
Very easy method @Ruchi, thank you.
Syed said:   7 years ago
Please explain the Answer Clearly.
Saleem Khan said:   8 years ago
How can we assume BD = 1?
Chetanpreet said:   9 years ago
T.D = B.G X 100/T X R,
Assume B.D = Rs 1,
Then T.D = B.D - B.G.
Swetha said:   9 years ago
Please explain the answer simply and clearly.
Surakshitha said:   9 years ago
Anyone. Please tell me a common procedure to find the rate percent.
Karthika said:   9 years ago
@Suresh

1*22/25 = 55/25.
1 - 22/25 = 3/25.
= 22/3.
Suresh said:   9 years ago
(1*22/25)/(1-22/25)? How it comes for 3/25?
MOHD IRSHAD said:   10 years ago
Dear, Can you explain in brief?
Ruchi said:   1 decade ago
Given T = 3/2.

B.G = 3/25 of B.D.

R = ?

Now, T.D = B.D - B.G.

(True discount = Banker's discount - Banker's gain).

T.D = B.D - 3/25B.D.

T.D = 22/25 B.D........(1).

Again TD = BD*100/(100+RT).

From equ(1).

22/25 BD = BD*100 /[100+(3/2)R].

22/25 = 100/[100+(3/2)R].

R = 100/11.

Real = 9 1/11.
(2)
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