InterviewSolution
Saved Bookmarks
| 1. |
A father divides a loan of Rs. 2,60,200 between his son and daughter so that the amount of son after 7 years is equal to the amount of daughter after 9 years, the interest being compounded at 4% pa.1. 135200, 1250002. 140000, 1350003. 141500, 1354004. 150000, 145000 |
|
Answer» Correct Answer - Option 1 : 135200, 125000 Given: Loan amount = Rs. 2,60,200 Rate of interest = 4% pa Formula used: Amount = Principal × [1 + r/100]n Calculations: Let the first part be x The second part = (260200 – x) According to the question, x(1 + 4/100)7 = (260200 – x)(1 + 4/100)9 ⇒ x/(260200 – x) = (1 + 4/100)9/(1 + 4/100)7 ⇒ x/(260200 – x) = 26/25 × 26/25 ⇒ x/(260200 – x) = 676/625 ⇒ 625x = 676 × 260200 – 676x ⇒ 1301x = 676 × 260200 ⇒ x = (676 × 260200)/1301 ⇒ x = 135200 Second part = 260200 – x ⇒ 260200 – 135200 ⇒ 125000 ∴ the two parts are 135200 and 125000. |
|