Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 6)
6.
A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?
Answer: Option
Explanation:
S.I. = Rs. (15500 - 12500) = Rs. 3000.
| Rate = |  |
100 x 3000 |  % |
= 6% |
| 12500 x 4 |
Video Explanation: https://youtu.be/SIcQu1HOmOk
Discussion:
51 comments Page 3 of 6.
Nikhil said:
1 decade ago
Hi. Why we took 12500 as principal?
Junaid said:
1 decade ago
By using the formula:
I = P R T/100.
I = 15, 500-12, 500 = 3000.
3000 = 12, 500*R*4/100.
3000*100 = 12, 500*4 R.
300000 = 50000 R.
R = 300000/50000.
R = 6%.
I = P R T/100.
I = 15, 500-12, 500 = 3000.
3000 = 12, 500*R*4/100.
3000*100 = 12, 500*4 R.
300000 = 50000 R.
R = 300000/50000.
R = 6%.
Gopal said:
1 decade ago
Why we take P = 12500 any why not 15500?
Suyog said:
1 decade ago
When we do following steps:
3000*100/12500*4=96.
We get 96 as a answer, then how 6% is your answer?
Just explain me in detail.
3000*100/12500*4=96.
We get 96 as a answer, then how 6% is your answer?
Just explain me in detail.
Dozie said:
1 decade ago
S.I per annum = (15500-12500)/4 = 750.
Rate = (S.I*100)/(P*T).
= (750*100)/(12500*4).
= 75000/50000 = 1.5.
Since interest is for four years, multiply by 4, thus; 1.5*4 yrs = 6.
Therefore are (rate) = 6%.
Rate = (S.I*100)/(P*T).
= (750*100)/(12500*4).
= 75000/50000 = 1.5.
Since interest is for four years, multiply by 4, thus; 1.5*4 yrs = 6.
Therefore are (rate) = 6%.
Shri said:
1 decade ago
4.65*10 = 46.5.
46.5*2 = 93.
Hence 20 days.
46.5*2 = 93.
Hence 20 days.
Namit kumar said:
10 years ago
Friends its very simple.
15500-12500 = 3000 /4 = 750.
750*100/12500 = 6%.
15500-12500 = 3000 /4 = 750.
750*100/12500 = 6%.
(1)
Vijayalaxmi said:
10 years ago
Here.
P = 12500.
T = 4 years.
Amount = S.I+P.
S.I = Amount-P.
S.I = 15500-12500 = 3000.
R = 100*S.I/P*T = 100*3000/12500*4 = 6%.
P = 12500.
T = 4 years.
Amount = S.I+P.
S.I = Amount-P.
S.I = 15500-12500 = 3000.
R = 100*S.I/P*T = 100*3000/12500*4 = 6%.
Raji said:
10 years ago
12500*6% = 750.
750*4 = 3000.
12500+3000 = 15500.
750*4 = 3000.
12500+3000 = 15500.
Rajesh said:
10 years ago
--> 12500*6% = 750.
---> 750*4 = 3000.
---> 12500+3000 = 15500.
Answer: 6%.
---> 750*4 = 3000.
---> 12500+3000 = 15500.
Answer: 6%.
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