Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 1)
1.
A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:
Answer: Option
Explanation:
S.I. for 1 year = Rs. (854 - 815) = Rs. 39.
S.I. for 3 years = Rs.(39 x 3) = Rs. 117.
Principal = Rs. (815 - 117) = Rs. 698.
Discussion:
174 comments Page 18 of 18.
Kannan said:
2 decades ago
Why should not subsract with 854? Please clear my doubt....
Name said:
2 decades ago
3y--815,
4y--854,
----------
1y--39,
So, 3y ---39 x 3 = 117
Principal is = (815-117) = 698
4y--854,
----------
1y--39,
So, 3y ---39 x 3 = 117
Principal is = (815-117) = 698
(1)
Jayesh said:
2 decades ago
Can the formula be SI*100/R*T ?
V.malarvizhi said:
2 decades ago
Why not applied principal formula si*100/r*t ?
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