InterviewSolution
Saved Bookmarks
| 1. |
A person invested a total of Rs. 9,000 in three parts at 3%, 4% and 6% per annum on simple interest. At the end of a year, he received equal interest in all the three cases. The amount invested at 6% is:1. Rs. 2,0002. Rs. 4,0003. Rs. 5,0004. Rs. 3,000 |
|
Answer» Correct Answer - Option 1 : Rs. 2,000 Given - principal = Rs. 9,000 Invested in three parts at 3%, 4% and 6% on simple interest Formula used - S.I = (principal × rate × time)/100 Solution - Let the amount be x, y and z respectively. ⇒ s.i = (x × 3 × 1/100) = (y × 4 × 1/100) = (z × 6 × 1/100) ⇒ x : y : z = (1/3) : (1/4) : (1/6) ⇒ x : y : z = 4 : 3 : 2 ⇒ the amount invested at 6% = (2 × 9000/9) = Rs. 2000 ∴ amount invested at 6% is Rs, 2.000. |
|