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 6 of 6.
Sujitha said:
7 months ago
Don't take this sum as seriously it's a very easy concept right..
They have already given the principal as 12500 and the amount is 15500.we know about tthe otal amount formula
Sol:
T.A=pricipal - interest.
So , sum and amount are there so we need to find SI only >>>>
15500 - 12500 = int >
3000=int>
N = 4yr.
R=?
Pnr/100=si.
12500 × 4 × R/100 = 3000.
R=6%.
They have already given the principal as 12500 and the amount is 15500.we know about tthe otal amount formula
Sol:
T.A=pricipal - interest.
So , sum and amount are there so we need to find SI only >>>>
15500 - 12500 = int >
3000=int>
N = 4yr.
R=?
Pnr/100=si.
12500 × 4 × R/100 = 3000.
R=6%.
(1)
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