Jane is now "x" years old.

Sam is now "y" years old

"Four years ago, Jane was twice as old as Sam."

x - 4 = 2(y - 4)

"Four years on from now, Sam will be 3/4 of Jane's age."

(3/4)(x + 4) = y + 4

y = 8 and x = 12

**Jane is now 12 years old**

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Four years ago, Jane was twice as old as Sam. Four years from now, Sam will be 3/4 of Jane's age. How old is Jane now?

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