Extra credit for doing it in your head.
Puzzle by @Cshearer41
Puzzle by @Cshearer41
The first 20 answers are all wrong. There is an exact answer and it's not 1/2.
0-for-40 now. You only need 9th grade math and with some effort can do it in your head.
Congrats to @adityabapat12 for being the first one to get it right.
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