SOLUTION: Kindly old Grandfather Lunn is twice as old as his son. Twenty-five years ago, their age ratio strange enough was three to one. When does Grandfather celebrate his centenary?

SOLUTION: Kindly old Grandfather Lunn is twice as old as his son. Twenty-five years ago, their age ratio strange enough was three to one. When does Grandfather celebrate his centenary?

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Question 263005: Kindly old Grandfather Lunn is twice as old as his son. Twenty-five years ago,
their age ratio strange enough was three to one. When does Grandfather
celebrate his centenary?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
g=2s
g-25=3(s-25)
this year grandpa is 100
25 years ago he was 75 and son was 25

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