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in Quadratic Equations by (20 points)
edited by

If Ritu were younger by 5 years than what she really is, then the square of her age would have been 11 more than five times her present age. What is her present age?

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1 Answer

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by (44.1k points)

Let the present age of Ritu be x years

(x − 5)2 = 5x + 11x

x2 − 15x + 14 = 0½

(x − 14) (x − 1) = 0 

⇒ x = 1 or 14

x = 14 years (rejecting x = 1 as in that case Ritu’s age 5 years ago will be –ve ) 

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