Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 11)
11.
A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:
Answer: Option
Explanation:
S.I. for 3 years = Rs. (12005 - 9800) = Rs. 2205.
| S.I. for 5 years = Rs. |  |
2205 | x 5 |  |
= Rs. 3675 |
| 3 |
Principal = Rs. (9800 - 3675) = Rs. 6125.
| Hence, rate = | |
100 x 3675 | % |
= 12% |
| 6125 x 5 |
Video Explanation: https://youtu.be/UYwiBCRN39s
Discussion:
68 comments Page 7 of 7.
Dinesh said:
1 decade ago
Why we didn't calculate for 8 yrs?
Abcd said:
4 years ago
Please anyone explain it for me.
Nitishh said:
7 years ago
Nice explanations, Thanks all.
Pramit Shome said:
7 years ago
The answer should be 20%.
Zayia said:
7 years ago
P = SI * 100/(R*T).
Steve said:
6 years ago
How come 3 here?
Xyz said:
2 decades ago
(2205/3) * 5 ?
Carlo ne said:
6 years ago
Thanks all.
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