When the five minutes were over, I would say, "Pass me the sheets of paper, and I'll pay you a dollar per question." People did this. I would pay people four dollars for their task — on average people would solve four problems.
Pasados 5 minutos, les diría, "Denme sus hojas y les voy a pagar un dólar por cada respuesta." La gente lo hacía y les pagaba cuatro dólares por el trabajo, en promedio la gente resolvía cuatro problemas.