It takes 10 people 5 days to complete a piece of work at a factory when working 2 hours a day. Working at the same pace, how many days will it take 2 people to do the same work, if they are working 5 hours a day?
With an incredible score of 210, Kim Ung-Yong holds the Guinness World Record for the highest IQ ever. His numeracy skills are amazing and at the age of just four, he was enrolled in college courses.