Tom is 3 times as old as jerry, in 10 years he will be twice as old as jerry will be then, how old are the boys now?
You were given two pieces of information, one about the relationship between the current ages of the boys, and the other about the relationship between their ages 10 years from now.
These two pieces of information will become two equations with two variables, Tom's age,
So, you know that at this point in time, Tom is three times older than Jerry. This means that you can write
Ten years from now, the two ages of the boys, which have increased by
This means that you can write
This will be your system of equations
To solve this system, replace
This means that
The two ages of the boys are