SOLUTION: Two years ago, tom is twice as old as jerry. In 2 years, tom is five years older than jerry. How old are they now?

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Question 1147007: Two years ago, tom is twice as old as jerry. In 2 years, tom is five years older than jerry. How old are they now?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!








substitute:



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Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.

Since "in 2 years, Tom is five years older than Jerry",  Tom always is five years older than Jerry until both are alive.


In particular, two years ago Tom was 5 years older than Jerry, 

and was twice as old as Jerry at the same time, according to the condition.


Hence, 2 years ago they were  5 and 10 years old.


So, now they are 7 and 12 years old.


Solved (mentally, without using equations).



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