Answer :

4 :25 am - 9 hours = 7:25 pm - 40 min = 7:05 pm
so answer is 7 :05 pm 
thats it :) 
[tex]4:25A.M.-9h=7:25P.M.\ yesterday\\\\40min=25min+15min\\\\7:25P.M.-25min=7:00P.M.\\\\7:00P.M.-15min=\boxed{6:45P.M.\ yesterday}[/tex]

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