Answer:
84 tons
Explanation:
Let's assume that Train B weighs x tons.
According to the problem, Train A is heavier than Train B, so we can express the weight of Train A in terms of x + 324.
We know that the total weight of both trains is 492 tons, so we can set up an equation:
x + (x + 324) = 492
Simplifying this equation:
2x + 324 = 492
2x = 168
x = 84
So Train B weighs 84 tons.
We can now find the weight of Train A by adding the difference between their weights (324 tons) to the weight of Train B:
Train A = Train B + 324 = 84 + 324 = 408
Therefore, Train A weighs 408 tons and Train B weighs 84 tons.