Aptitude - Simple Interest
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- Simple Interest - Formulas
- Simple Interest - General Questions
- Simple Interest - Data Sufficiency 1
- Simple Interest - Data Sufficiency 2
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.
Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 - x).
Then, | x x 14 x 2 | + | (13900 - x) x 11 x 2 | = 3508 | ||||
100 | 100 |
28x - 22x = 350800 - (13900 x 22)
6x = 45000
x = 7500.
So, sum invested in Scheme B = Rs. (13900 - 7500) = Rs. 6400.
Video Explanation: https://youtu.be/Xi4kU9y6ppk
Principal |
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= Rs. 8925. |
Let rate = R% and time = R years.
Then, | 1200 x R x R | = 432 | ||
100 |
12R2 = 432
R2 = 36
R = 6.
Video Explanation: https://youtu.be/TjjI4iRkzT0