Question

If the difference of reciprocals of ages of a boy three years ago and five years from now is 8/9, then the present age of the boy in years is

Answer 1

Answer:

x = 4 yrs

Step-by-step explanation:

present age of the boy = x yrs

3 yrs ago of the boy = ( x -3 ) yrs

after 5 yrs age of boy = ( x +5 ) yrs

1/x-3 - 1/x+5 = 8/9

x2 +2x -24 =0

x = 4 ( or ) x = -6

present age of boy = x = 4 yrs