Give the step-by-step reasoning process and then the final answer. There are 20 bicycles, 10 cars and 5 motorcycles in the garage at Connor's house. How many wheels are there in the garage?
The number of bicycle wheels is 2 20 = 40. The number of car wheels is 4 10 = 40. The number of motorcycle wheels is 2 5 = 10. There are 40 + 40 + 10 = 90 wheels in the garage.
The final answer: 90.