A=32+15×2^(2t/30)
36032 = 32+15×2^(2t/30)
36000 = 15×2^(2t/30)
240 = 2^(t/15)
Log (240) = Log (2^(t/15))
Log (2^3) + Log (3) + Log (10) = t/15 . Log(2)
3.Log (2) + Log (3) + Log (10) = t/15 . Log(2)
3 . 0,3 + 0,48 + 1 = t/15 . 0,3
2,38 = t/50
t = 119 dias.