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 3 of 7.
Deepak Soni said:
8 years ago
At last,
si=(735*100)/6125,
Si=12%.
si=(735*100)/6125,
Si=12%.
SAUMENDRA said:
8 years ago
12005-9800=2205(SI FOR 3 YEARS).
SI FOR 1 YEAR=2205/3=735.
SI FOR 5 YEARS=735 X 5=3675.
PRINCIPAL 9800-3675=6125.
6125 AMT SI IS 735.
SO,100 AMT SI IS 735/6125 X 100=12%.
SI FOR 1 YEAR=2205/3=735.
SI FOR 5 YEARS=735 X 5=3675.
PRINCIPAL 9800-3675=6125.
6125 AMT SI IS 735.
SO,100 AMT SI IS 735/6125 X 100=12%.
Sanjeev verma said:
9 years ago
How to solve this after getting SI?
Zayia said:
7 years ago
P = SI * 100/(R*T).
Swathi said:
7 years ago
Can anyone explain why they have considered 5 years and not 8 years?
Nitishh said:
7 years ago
Nice explanations, Thanks all.
Pramit Shome said:
7 years ago
The answer should be 20%.
Ayaz said:
6 years ago
@Pramit shome.
Would you explain how?
Would you explain how?
Zaid said:
6 years ago
How will we calculate it with the basic SI formula?
SI = P*T*R/100.
Please explain.
SI = P*T*R/100.
Please explain.
Carlo ne said:
6 years ago
Thanks all.
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