SOLUTION: In four years tme, I shall be five times as old as I was sixteen years ago. How old am I?

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Question 481702: In four years tme, I shall be five times as old as I was sixteen years ago. How old am I?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
In four years time, I shall be five times as old as I was sixteen years ago. How old am I?
:
Let your present age = a
:
a + 4 = 5(a - 16)
a + 4 = 5a - 80
4 + 80 = 5a - a
84 = 4a
a = 84%2F4
a = 21 is your present age