2. In one auto repair shop, 44 vehicles were repaired in one month, including motorcycles and cars. All these vehicles had a total of 144 wheels. How many motorcycles and how many cars were there?
2. If all vehicles were motorcycles, the total number of wheels would be $44 \cdot 2=88$. ..... 2 POINTS
However, the total number of wheels was 144, which is $144-88=56$ more. ..... 2 POINTS
Considering that a car has $4-2=2$ more wheels than a motorcycle, ..... 2 POINTS
then the number of cars was $56: 2=28$. ..... 2 POINTS

The number of motorcycles was $44-28=16$.

2 POINTS