Saved Bookmarks
| 1. |
-SolvebyFormula methodinARB13] me ages of| years the product onme 19 & 15 respectivelytheir ages is 480.19-6-5Tespih |
|
Answer» Given,Age of A = 19 yearsAge of B = 15 years Let in x years product of ages will be 480 Then,(19 + x)*(15 + x) = 48019*15 + 19x + 15x + x^2 = 480x^2 + 34x - 195 = 0x^2 + 39x - 5x - 195 = 0x(x + 39) - 5(x + 39) = 0(x - 5)(x + 39) = 0x = 5, - 39 Negative value not possible Therefore, on adding 5 to each 19 and 15 product will be 480 |
|