Question 610942
Let's write this mathematically. Age will be described by x.
Papa John is 50 years old (=50). His age is 2 years more (+2) than 3 times (3x) the age of Jimmy John.
So, it'd look like: {{{3x+2=50}}}. 
Now, we simplify: {{{3x=48)}}} to {{{x=16}}}.
So, we get that Jimmy's age is <b>16 years.</b>