Question

A train Little Rock Arkansas travels north at 90 kilometers per hour another train leaves at same the time and travels south at 65 kilometers per hour how long will it take before they are 310 kilometers apart ? It will take ? Hours

Answer 1

Okay, here we have this:

Considering the provided information we obtain the following equation:

90x+65x=310 (where x is the time in hours)

155x=310

x=2

Finally we obtain that it will take will it take before they are 310 kilometers apart