Question

two trains leave stations 280 miles apart at the same time and travel toward each other. one train travels at 95miles per hour while the other travels at 105miles per hour. how long will it take for the two trains to meet?

Answer 1

basiclaly, when will total distance equal distance they are apart
distance apart=280

distance=speed times time

assuming they travel sasme amount of time
time=t

distance=speed times time
d1=95 times t
d2=105 times t

total distance=d1+d2
280=d1+d2
280=95t+105t
280=200t
divide both sides by 200
1.4=t

answer is 1.4 hours or 84 mins