Posted by cely on Wednesday, October 7, 2009 at 6:04am.
let Leah present age be x yrs
then Tanya is now x+12
Three years ago, Leah was x-3
and Tanya was x+12 - 3 or x+9
at that time "Tanya was five times as old as leah"
x+9 = 3(x-3)
x+9 = 3x - 9
18 = 2x
x = 9
So Leah is now 9, and Tanya is now 21
check:
three years ago Leah was 6 and Tanya was 18
Was Tanya three times as old?
is 18 equal to 3 times 6?
Tanya's age t is three times Martin's age m.
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