Aptitude - Banker's Discount - Discussion
Discussion Forum : Banker's Discount - General Questions (Q.No. 3)
3.
The banker's gain of a certain sum due 2 years hence at 10% per annum is Rs. 24. The present worth is:
Answer: Option
Explanation:
| T.D. = |  |
B.G. x 100 |  |
= Rs. | |
24 x 100 | |
= Rs. 120. |
| Rate x Time | 10 x 2 |
 P.W. = |
100 x T.D. | = Rs. | |
100 x 120 | |
= Rs. 600. |
| Rate x Time | 10 x 2 |
Discussion:
27 comments Page 1 of 3.
Dileep Mathew John said:
1 decade ago
@Sayan.
We have studied the formula for Simple interest na.
S.I= (P.R.T) /100 where P=principal, R=Rate, T=Time.
100 is there because rate is specified as a percentage. Just cross multiply the equation P=[(S.I) *100/ (R. T) ] Here P, principal is nothing but the present worth & true Discount is similar to S. I in this case and hence the equation.
We have studied the formula for Simple interest na.
S.I= (P.R.T) /100 where P=principal, R=Rate, T=Time.
100 is there because rate is specified as a percentage. Just cross multiply the equation P=[(S.I) *100/ (R. T) ] Here P, principal is nothing but the present worth & true Discount is similar to S. I in this case and hence the equation.
Sukhsand Singh said:
10 years ago
Is the answer correct?
I mean B.G = B.D - T.D.
Now, B.D = (PxRxT)/100.
T.D = (PxRxT)/(100+ RxT).
Now, R=10; T=2; B.G = 24.
Solving this we get P = 720.
Am I doing anything wrong? Appreciate the help.
I mean B.G = B.D - T.D.
Now, B.D = (PxRxT)/100.
T.D = (PxRxT)/(100+ RxT).
Now, R=10; T=2; B.G = 24.
Solving this we get P = 720.
Am I doing anything wrong? Appreciate the help.
Bhaskar Reddy said:
5 years ago
BD-TD=24, So
Take BD in terms of TD I,.e BD=TD(100+rt)/100.
Substitute in above and take TD as common& solve TD,
You will get True discount 120,
Take TD=PW*rt/100 basic formulae,
We get PW as 600.
Take BD in terms of TD I,.e BD=TD(100+rt)/100.
Substitute in above and take TD as common& solve TD,
You will get True discount 120,
Take TD=PW*rt/100 basic formulae,
We get PW as 600.
(1)
Jai prakash said:
1 decade ago
Simple method as for I know.
T.D. =(B.G. x 100)/(R/T)= (24*100)/(10*2)=Rs.120.
B.G=(T.D)^2/P.W => P.W= (T.D)^2/B.G.
P.W= (120)^2/ 24 = 14400/24=600.
If anyone knows better explanation?
T.D. =(B.G. x 100)/(R/T)= (24*100)/(10*2)=Rs.120.
B.G=(T.D)^2/P.W => P.W= (T.D)^2/B.G.
P.W= (120)^2/ 24 = 14400/24=600.
If anyone knows better explanation?
BHAVADIP said:
8 years ago
True Discount and bankers discount in which lots of the discount.
BD is Actually Simple Intrest And banker TD is After the discount.
BD is Actually Simple Intrest And banker TD is After the discount.
Habibur Rahman said:
7 years ago
I really don't understand why has come TD here?
I think p=SI/nr where p is the principle and it should be asked answer and it's 120.
I think p=SI/nr where p is the principle and it should be asked answer and it's 120.
(2)
Vishal nigade said:
1 decade ago
100 is there because rate is specified as a percentage. Just cross multiply the equation P=[(S.I) *100/ (R. T) ]
Imzzys said:
1 decade ago
Someone please show the derivation.
B.G. = (T.D.)*(T.D.)/P.W. or
T.D. = B.G.*100 /(Rate*Time).
B.G. = (T.D.)*(T.D.)/P.W. or
T.D. = B.G.*100 /(Rate*Time).
Sakthivel MRSD said:
10 years ago
T.D = B.G*100/R*T.
= 24*100/10*2.
T.D = 120.
P.W = 100*T.D/R*T.
= 12000/20.
P.W = 600.
= 24*100/10*2.
T.D = 120.
P.W = 100*T.D/R*T.
= 12000/20.
P.W = 600.
Divya said:
9 years ago
What is B.G?
Is this difference between true discount and bankers discount?
Is this difference between true discount and bankers discount?
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