Aptitude - Banker's Discount - Discussion

Discussion Forum : Banker's Discount - General Questions (Q.No. 1)
1.
The banker's discount on a bill due 4 months hence at 15% is Rs. 420. The true discount is:
Rs. 400
Rs. 360
Rs. 480
Rs. 320
Answer: Option
Explanation:
T.D.
= B.D. x 100
100 + (R x T)
= Rs. 420 x 100
100 + 15 x 1
3
= Rs. 420 x 100
105
= Rs. 400.
Discussion:
70 comments Page 7 of 7.

BhargaV said:   1 decade ago
What does T.D. & P.W. stands for ???

Achyuth said:   1 decade ago
Why we use 1/3 for percentage?

Yuri said:   1 decade ago
Same question as Jyotiii.

Jyothi said:   1 decade ago
How comes this formula T.D. = B.D. x 100 / 100+(R*T)


Atually T.D = Amout*rate*time / 100+(R*T)

Saleem said:   1 decade ago
short cut:

p*r*t

420*15%*4/12 = 20

420-20 = 400

Vinoth said:   1 decade ago
How we can take 15% is rate?

Sundar said:   1 decade ago
Hi All,

Here T stands for Time or Number of Years.

Why T = 1/3?

Because we can write 4 months as 1/3 years. (Ref: 4/12 = 1/3)

Hope you understand. Have a nice day guys!

Raja shekar said:   1 decade ago
What is the T stands for?

Mayuri said:   2 decades ago
How to find in shortcut way?

Ramkumar said:   2 decades ago
How T = 1/3?


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