Question 975609
Mr.Munch is twice as old as his daughter. In two years, he will be four times as old as she was fifteen years ago. Find their ages now.
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now:
let x=daughter's age
2x=Mr Munch's age
..
15 yrs ago:
x-15=daughter's age
.. 
In 2 yrs:
2x+2=Mr Munch's age
..
2x+2=4(x-15) ( In two years, he will be four times as old as she was fifteen years ago.)
2x+2=4x-60
2x=62
x=31
2x=62
..
their ages now:
daughter's age=31
Mr Munch's age=62