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4At present ashas age is 2years more than the square of her daughter age. when daughter grows to her mothers age,ashas age would be 1 year less than 10 timespresent age of daughter.find present age of asha and daughter
Asked by parmodgulati | 16 Feb, 2014, 05:40: PM
answered-by-expert Expert Answer
Let the age of her daughter is x
Then Asha's age is x2 +2
Given that
x squared plus 2 equals 10 x minus 1 rightwards double arrow x squared minus 10 x plus 3 equals 0 rightwards double arrow x equals fraction numerator 10 plus-or-minus square root of 100 minus 4 cross times 12 end root over denominator 2 end fraction rightwards double arrow x equals fraction numerator 10 plus-or-minus square root of 52 over denominator 2 end fraction rightwards double arrow x equals 5 plus-or-minus square root of 13
This should be an integral number. Please check your question.
Answered by | 17 Feb, 2014, 12:57: PM

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