Another new rule to add to our existing rule:
A is wrong because G needs QR after it now. If G goes in 5 is too late, there’s no space afterwards for both Q and R.
B forces G to go in 3. If H is in 6, then F is in 1. That means J – GQR goes in the middle like this:
This doesn’t work because. If G is in 3 then Q must be in 5.
C is CORRECT. This scenario proves J could go in 2:
D is no good. If Q is on day 4, then G is on day 3. The rules say that if G is on day 3 then Q must be on day 5.
E is wrong because J, G and Q all come before R. The earliest R can go is 4.
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