Dimensional analysis: if you count at the rate of 2 numbers every secound, how many days whould it take you to count to 1 million?

Answer: 5 days

Explanation:

1,000,000/2 = 500,000 * do this because of the 2 numbers every second

500,000/60 = 8,333.33 * do this to get minutes

8,333.33/60 = 138.88 * do this to get hours

138.88/24 = 5.7866 * do this to get days

5 days 7 hours 8 minutes 6 seconds