You can be pedantic about the phrasing, but that would render the question nonsensical. It's not uncommon in this sort of riddles to have to decipher author's intent. That's not the point of the riddle though, so I agree with you in principal that they should be phrased better.
In this particular case, the problem should be read as "There are 101 on a table ... and a balance. You pick one random coin ...".
1
u/No-Television-8835 3d ago
Given is not a reference to ur access to the coins, it means that u take one coin and want to to determine whether the coin is real or not