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A loan of 10,000 was given to Aman for 3 years at 10% for the 1st year, 15% for the rest of 2 years. Find the amount Aman will have to pay. (Interest is compounded annually)1. 14357.52. 13456.63. 14557.54. 14547.5 |
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Answer» Correct Answer - Option 4 : 14547.5 Given: Loan Amount(P) = Rs. 10,000 Time = 3 years Rate for 1st year(x) = 10% Rate for 2nd and 3rd year(y) = 15% Formula used: Net effect formula for CI = x + y + (x × y) / 100 Calculations: Rate for 1st, 2nd and 3rd year is 10%,15% and 15% P = 10,000 and T = 3 years Net effect for 1st 2 years ⇒ x + y + (x × y) / 100 ⇒ 10 + 15 + (10 × 15) / 100 ⇒ 26.5% Now for 3rd year ⇒ 26.6 + 15 + (26.5 × 15) /100 ⇒ 41.5 + 3.975 ⇒ 45.475% Let, Principal be 100x Amount = (P + CI) = 100x + 45.475x ⇒ 145.475x ⇒ 100x = 10000 ⇒ 145.475x = 14547.5 ∴The amount Aman will have to pay is Rs. 14547.5. |
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