Elimination Method of Finding Solution of a Pair of Linear Equations
27 yrs hence ...
Question
27yrs hence sanjay's age will be square of what it was 29yrs ago find his present age
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Solution
Let the present age of Sanjay be x Given: x+27=(x-29)^2 =>x^2-59x+814=0 814=22*37 bySplitting the middle term, we get:(x-22)(x-37)=0 =>x=22,37 But 22 cannot be a solution because he will not be present before 29 years. =>His Current age is 37