Google Maps travel time accuracy: How exactly does it know the distance and time of your trip

Google Maps estimates travel time using a blend of technology and data. It calculates distance, considers speed limits, and ...

Simple looking equation stumps people - can you remember the 'special rule' to get right answer?

In grade school, you were constantly drilled on mathematics. But as an adult, those lessons all too often fall to the wayside. See if you can remember elementary formulas with this math problem.