Jawabanmu

2014-05-11T20:54:33+07:00
M . c . t1-tc = m . c . tc-t1
kalor sama jadi dicoret, tinggal
m . t1-tc = m . tc-t1
mdicari . 95-35 = 12 . 35-25
m . 60 = 12. 10
60m = 120
m = 2kg