John is working as an IT specialist. He repairs broken computers. One day he had to fix 20 computers. 20% of them were unfixable, and 40% of them needed to wait a few days for spare parts to come. The rest John was able to fix right away. How many computers John was able to fix right away? Let's think first. Chain of thought:
From all the computers, 100% - 40% - 20% = 40% got fixed right away. So John was able to fix 40 / 100 * 20 = 8 computers.
Therefore, the answer is 8.