Answer:
10.30p.m - 6.00a.m = 4.30
11.00p.m - 6.00a.m = 5.00
11.00p.m - 7.00a.m = 4.00
4.30 + 5.00 + 4.00 = 13.30
or you could do
4.30 + 4.00 = 8.30
8.30 + 5.00 = 13.30
13.30 = 1.30
I don't know if this is right, but i tried my best to help.
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