If the letters T*(RBJBR)=VPLNT each represented a unique digit, and "RBJBR" was a five digit number, what are possible values for the letters? (Or ONE possible value.)
Can we do this in a way that can be done on paper without "guessing and plugging numbers" (or computers, for that matter)?
Got this question as a math challenge from a club, not sure how do go about it.
Here is a start...
If you check the last digit, you'll see that $T*R$ ends in $T$. Also, by looking at the first digit, $T*R$ is at most $9$, otherwise the right side has $6$ digits.
Then $T*R=T$ which means that either $T=0$ (not possible) or $R=1$. Thus $R=1$.
$T*(1BJB1)=VPLNT$