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If you add the square of Tom's age to the age of Mary, the sum is 62; but if you add the square....

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If you add the square of Tom's age to the age of Mary, the sum is 62; but if you add the square of Mary's age to the age of Tom, the result is 176.
Can you say what are the ages of Tom and Mary?

posted Apr 7, 2016 by Renita

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3 Answers

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Best answer

Tom = 7
Mary = 13
Let's label Tom x and Mary y

(x^2)+y=62
(y^2)+x=176
(x,y) = (7,13)

QED

answer Apr 7, 2016 by anonymous
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tom,s age 7 and Mary 13

answer Apr 7, 2016 by Sumit Kumar
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x^2+y=62 --i
y^2+x=176 --ii
adding i and ii we get,
x^2+x+y^2+y-62-176=0;
therefore, x={sqrt((4*132)-4(y^2+y)+1)-1}/2;
Plotting The graphs of x v/s y we will get,
(x,y) = (7,13)

answer Feb 25, 2018 by anonymous



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