Question 611089: i am twice as old as you were when i was of your age. sum of your and my age is 42 yrs. calculate my age ? Found 2 solutions by radh, josmiceli:Answer by radh(108) (Show Source):
You can put this solution on YOUR website! Let's write this mathematically.
I am twice as old as you were when I was of your age. (2x) Sum of your and my age is 42 years. (+x)
That can simplify to:
Divide both sides by 3 to get: .
Since your age is 2x, we substitute our value for x in.
Your age is 28.
You can put this solution on YOUR website! Let = my age now
Let = your age now
The difference in our ages will always be the same
That difference is ( I am older )
I was your age years ago, so I was years old then.
You were years old then.
given:
(1)
(2)
-----------------------
(1)
(1)
(1)
By substitution:
(2)
(2)
(2)
(2)
and, since
(2)
(2)
(2)
I am 24
