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 5 of 7.
Siva said:
10 years ago
9800 and 12005 is principle or simple interest? Please explain clearly.
(1)
Swathi said:
7 years ago
Can anyone explain why they have considered 5 years and not 8 years?
Bhuvana said:
1 decade ago
@Mathan.
Whether this formula works in all those similar problems?
Whether this formula works in all those similar problems?
Mohd Faiq said:
6 years ago
Which formula you have used to find SI for 3 years = (12005-9800)?
Ays said:
6 years ago
Why do we take 3 year as SI not as amount? Please explain to me.
(1)
Krishna said:
1 decade ago
Why s.i for 3yrs and 5yrs are taken instead of 5yrs and 8yrs?
Sruthi said:
1 decade ago
Why SI for 3yrs and 5yrs are taken instead of 5yrs and 8yrs?
SANDIP said:
10 years ago
I = PRT/100 -----> 735 = 6125*R*1/100 ---> R = 12%.
Mohit Mehta said:
8 years ago
Sum of an amount means? Please, anyone tell me to get it.
Aravind amarnath said:
7 years ago
(100*3675)/(6125*5)% Please anyone explain this step.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers