SOLUTION: Grandfather is 66 years old and his eldest daughter is 28. When will grandfather be twice as old as his oldest daughter?

Question 825945: Grandfather is 66 years old and his eldest daughter is 28. When will grandfather be twice as old as his oldest daughter?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Grandfather is 66 years old and his eldest daughter is 28.
When will grandfather be twice as old as his oldest daughter?
:
Let y = no. of years for this to be true
66 + y = 2(28+y)
66 + y = 56 + 2y
66 - 56 = 2y - y
10 = y
this will be true in 10 years
:
Gramps will be 76 and Daughter will be 38
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