SOLUTION: the difference between the ages of two [ersons is 10 year.fifteen years ago,if the elder one was twice as old as the younger one,find their present ages.

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Question 344434: the difference between the ages of two [ersons is 10 year.fifteen years ago,if the elder one was twice as old as the younger one,find their present ages.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Note: The elder person is "always" 10 years older than the younger person!
Let E be the age of the elder person fifteen years ago!
(E-10) being the age of the younger person.
Question states the following to be true fifteen years ago.
E= 2(E-10)
Solve
E= 2E-20
20=2E
10=E the age of the elder person fifteen years ago!
Present Ages!
Elder is now 25 and the younger 15!