Problema Solution
A train leaves little rock, Arkansas, and travels at 90 kilometers per hour. Another train leaves at the same time and travels south at 60 kilometers per hour. How long will it take before the are 600 kilometers apart.
Answer provided by our tutors
let time taken be x hrs
as trains are travelling in opposite direction
(90+60)*x = 600
150x = 600
x = 600/150 = 4hrs