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1. Correct answer: [14 vehicles] , choose the second one.
2. The cars here should all be conventional four-wheeled ones, not five-wheeled or three-wheeled ones. Don’t think too much, just follow the conventional method.
3. First, the total number of wheels is 42X4=168
4. Because the wheels were stolen, some cars only had three wheels left, so each car only had 4-3=1 stolen.
5. Now there are 168-154=14 wheels missing
6. Then there are 14/1=14 cars whose wheels were stolen.