Question 387792
{{{P(t) = 120*2^(t/30)}}}, assuming t is in hours.
{{{122880 = 120*2^(t/30)}}},
{{{1024 = 2^(t/30)}}},
{{{ln1024 = (ln2)t/30}}}
{{{t = 30ln1024/ln2 = 300}}} hours.