Answer:
They will meet at the marker 83 1/3 km
Step-by-step explanation:
Here, we want to know the number of miles at which they meet
mathematically;
distance = speed * time
As we know, they will meet at the same time
So, we can equate this
The car would have traveled x mph when they meet while the train would have traveled 150-x mph when they meet
The time for the car will be x/75
Time for the train will be (150-x)/60
The times are equal;
x/75 = 150-x/60
60(x) = 75(150-x)
60x = 11250-75x
75x + 60x = 11250
135x = 11,250
x = 11250/135
x = 83 1/3 mph
