Answer:
Train A's weight is 259 tons
Train B's weight is 42 tons
Explanation:
Let x represent train A's weight, and y represent train B's weight.
Since they both weigh 301 tons
The equation is: x+y = 301
The difference in their weight is 210, and train A is heavier
So equation is: x - y = 217
x+ y =301
x- y = 217
2x = 518
x = 259 tons
Now find train B
301 - 259 = 42 tons