Come up with a question and reasoning that would justify this answer: 10
The question is: Yesterday, David and William were invited to a party. David broke 2 glasses, while his friend William broke 4 times the number of glasses David broke. How many glasses were broken?
Step-by-step reasoning process: William broke 4 * 2 = 8 glasses. So, David and William broke 8 + 2 = 10 glasses.