SOLUTION: A grandfather is 4 times as old as his grandson now. Two years ago , the sum of their ages is 76 years. how old is his grandson now?

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Question 1133147: A grandfather is 4 times as old as his grandson now. Two years ago , the sum of their ages is 76 years. how old is his grandson now?
Answer by ikleyn(52793) About Me  (Show Source):
You can put this solution on YOUR website!
,
Let x be the grandson age now (the value under the question).

Then the grandfather age is 4x years.


Two years ago . . . 


    (x-2) + (4x-2) = 76.


Simplify and solve for x.


    x - 2 + 4x - 2 = 76

    5x = 76 + 2 + 2 = 80


    x = 80%2F5 = 16  is the grandson age.      ANSWER

Solved.