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 2 of 6.
Hemant said:
1 decade ago
A boy saves Rs.4.65 daily. Find the least number of days in which he will be able to save an exact number of rupees.
Can anyone get me answer for this ?
Its 20 days.
Can anyone get me answer for this ?
Its 20 days.
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%.
SammaniS said:
8 years ago
I don't understand. Why we didn't divide 3,000 by 4 (as it is given that the principal increased in 4 years) to get the actual S.I, that is for a single year?
Rajesh said:
1 decade ago
We have a 12500 amount & after 4 year, we get 15500 amount so total.
Profit amount or S.I in 4 Year is 3000.
Now use the Formula:.
S.I = (P*R*T) /100.
Profit amount or S.I in 4 Year is 3000.
Now use the Formula:.
S.I = (P*R*T) /100.
Jenson said:
1 decade ago
A boy saves Rs.4.65 daily. Find the least number of days in which he will be able to save an exact number of rupees.
Can anyone get me answer for this ?
Can anyone get me answer for this ?
Aayush Bhatnagar said:
1 decade ago
The calculation used to calculate rate gives out 30 as the answer.
[(3000 x 100)/(12500 x 4)] = 30. NOT 6.
Can anyone throw a light on this?
[(3000 x 100)/(12500 x 4)] = 30. NOT 6.
Can anyone throw a light on this?
Gayu said:
1 decade ago
Here, 6 is the correct answer.
15500-12500=3000.
Formula:
SI=PNR/100.
3000=12500*4*R/100.
3000*100/12500*4=R.
300000/50000=R.
R=6%.
15500-12500=3000.
Formula:
SI=PNR/100.
3000=12500*4*R/100.
3000*100/12500*4=R.
300000/50000=R.
R=6%.
Jyothi said:
1 decade ago
In question I unable to identify which is amount and which is principal please help me. What is the difference b/w amount and principal?
Priya said:
8 years ago
Why we are taking as 12, 500 instead of 15,000. We are taking the number of the year (t) is 4. So we want tot take 15,500 am I right?
Vijayalaxmi said:
1 decade 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%.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers