Question 415703
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Hi
a man is three times as old as his son
Let x  and 3x represent the son's and father's ages NOW
Question states***  4 years ago ...
 (x-4) + [3x - 4] = 60
Solving for x
     4x = 68
      x = 17, son's age now. Father is 51
CHECKING our Answer***
  47 + 13 = 60