Aptitude - True Discount - Discussion

Discussion :: True Discount - General Questions (Q.No.12)

12. 

The interest on Rs. 750 for 2 years is the same as the true discount on Rs. 960 due 2 years hence. If the rate of interest is the same in both cases, it is:

[A]. 12%
[B]. 14%
[C]. 15%
[D].
16 2 %
3

Answer: Option B

Explanation:

S.I. on Rs. 750 = T.D. on Rs. 960.

This means P.W. of Rs. 960 due 2 years hence is Rs. 750.

T.D. = Rs. (960 - 750) = Rs. 210.

Thus, S.I. on R.s 750 for 2 years is Rs. 210.

Rate = 100 x 210 % = 14%
750 x 2


Dhanesh said: (Nov 26, 2010)  
Never use short form, because it creats problem while understanding like PD, PW Etc, just mentioned clear step so that person who is weak in maths can also understand what is happening. Or even who has not studied bcom can understand.

Kelvin said: (Dec 12, 2010)  
Can you help me out in this prob?

Anil Kumar said: (Aug 3, 2011)  
If the rate of intrest and true discount is same then it is not enough to calculate the rate of intrest to get the answer.

Vika said: (Sep 15, 2011)  
But it is the simple interest?

Shiva Sri Krishna said: (Jul 31, 2013)  
Whats PW?

Vani said: (Apr 24, 2014)  
What is PW?

Akhil said: (Oct 10, 2014)  
Pw is present worth.

Aparna said: (Jul 8, 2015)  
What is the formula for are how can I calculate that help me please?

Vishal said: (Jan 5, 2016)  
Is there any other method?

Deepesh said: (Aug 16, 2016)  
S.I = PW * r * t /100.
T.d = amount * r * t/100 + r * t.

As given S.I = T.d .

750 * r * 2/100 = 960 * r * 2 / 100 + r * 2.

R = 14.

Praveen Reddy said: (Aug 30, 2016)  
I am satisfied with your answer. Thanks, @Deepesh.

Priya said: (Oct 18, 2016)  
How we say that p.w of Rs.960 is Rs.750?

D Priya said: (Feb 11, 2018)  
It is said that SI = TD.

So we can calculate the rate by comparing this equality given in this question.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.