Chain of Thought Labeling
Label every step in multi-step reasoning chains. Verify logical correctness, identify errors, and build high-quality datasets for training models that think step by step.
Reasoning Steps
Label each step in the chain
Chain of Thought Labeling
Task ID: COT-8834 • Math Problem Solving
A train leaves Station A at 9:00 AM traveling at 60 mph toward Station B. Another train leaves Station B at 10:00 AM traveling at 80 mph toward Station A. If the stations are 280 miles apart, at what time will the trains meet?
Let t = time in hours after 10:00 AM when trains meet
Distance covered by Train A by 10:00 AM = 60 × 1 = 60 miles
Remaining distance = 280 - 60 = 220 miles
After 10:00 AM:
Train A distance = 60t
Train B distance = 80t
Combined: 60t + 80t = 220
140t = 220
Is this step correct?
Reasoning Quality
Error Category (if applicable)
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