Question 1183732
{{{4(1/8+1/15)+t(1/15)=1}}}, the time t for Topher to finish, IN HOURS


{{{1/2+4/15+t/15=1}}},  common denominator, 30

{{{30(1/2)+120/15+30t/15=30}}}

{{{15+8+2t=30}}}

{{{2t=15-8}}}

{{{2t=7}}}

{{{t=3&1/2}}}{{{HOURS}}}