Question 285609
You can just add their speeds in 1 equation
{{{d = r*t}}}
{{{50 = (100 + 60)*t}}}
{{{t = 50/160}}}
{{{t = 5/16}}} hrs
{{{t = (5/16)*60}}} min
{{{t = 18.75}}} min
The cross paths in 18 min and 45 sec