Determine if the conclusion follows logically from the premises. Is this a valid or invalid argument?

Premise: If it has an engine, I can fix it.
Premise: Cars have engines. Conclusion: I can fix cars.

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?