Question

vivek is older than kishorby5years.the sum of their precipocal of their ages is 1/6. find their present ages

Answer 1

let the present age of Kishore be X .
therefore present age of Vivek =(x+5)years ,
according to the given condition ,1/x+1/x+5=1/6

therefore
x+5+x/x(x+5)=1/6

therefore
2x+5/x(x+5)=1/6
therefore 6(2x+5)=x(x+5)
12x+30=2square+5x
x square+5x-12x-30=0
x square-7x-30=0



you can solve the equation by factorization method and you will get the ages


present ages of Kishore and Vivek are 10 years and 15 years respectively ....



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