Seven years ago the ratio of the ages of ajith and ganesh was 5 : 7 if the product of their present ages is 616 find the ratio of their present age
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Step-by-step explanation:
let the common multiple be x.
therefore age( 7 years ago) of ajith = 5x and age ( 7 years ago)of ganesh = 7x.
their present ages : ajith = 5x + 7 and ganesh = 7x + 7.
hence,
(age of ajith) x (age of ganesh) = 616
(5x+7) x (7x +7) = 616
35x^2 + 35x + 49x + 49 = 616
35x^2 + 74x =616- 49
35x^2 +74x - 567 = 0
now solve the linear equation for the solution
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