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The difference between the simple interest of 3 years at 8% and that of 2 years at 9% rate of interest is Rs. 96. What is the principal?1. 12002. 16003. 18004. 2400 |
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Answer» Correct Answer - Option 2 : 1600 Given: The difference between the simple interest of 3 years at 8% and that of 2 years at 9% rate of interest is Rs. 96. Concept Used: SI = (P × R × T)/100 Calculation: Let, the principal be P Interest in first case is (3P × 8)/100 = 24P/100 Interest in 2nd case is (2P × 9)/100 = 18P/100 Accordingly, 24P/100 - 18P/100 = 96 ⇒ 6P/100 = 96 ⇒ P = 1600 ∴ The required principal is Rs. 1600. |
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