Raymond B. answered 01/27/23
Math, microeconomics or criminal justice
500-2(500)= 500-1000 =-500
which is not close to 130
so the "wise man" is either math illiterate
or maybe somewhere between -500 and 130
maybe take an average as the best estimate
but that gives a negative number, most unlikely
even in some budhist guru on the mountain top reincarnation life spans
so best guess might better be 130/2 the average of 0 and 130 = 65 years old. a relatively normal age, other things ignored.
or maybe he really meant 500 reduced by half his age
that's 250 but still not that close to 130
maybe he said 500 reduced by 370 = 130
or some other miscopy or misprint in the problem