Practicing Success
The price of an article increases by 20% every year. If the difference between the price at the end of the third year and fourth year is 259.20, then 40% of the price at the end of the second year ? |
400 412 432 450 |
432 |
20% = \(\frac{1}{5}\) . let original price = 5 , increased price = 5 + 1 = 6 I yr II yr III yr IV yr 5 : 6 5 : 6 5 : 6 ---------------------------------------------------------------- overall- 125 : 150 : 180 : 216 ( 216R - 180R) = 36R 36R = 259.2 ( given ) 1R = 7.2 40% of the price at the end of the second year \(\frac{2}{5}\) × 150R = 60R 60R = 60 × 7.2 = 432 |