[FONT='Verdana','sans-serif']There is a bus with 7 [/FONT][FONT='Verdana','sans-serif']boys. Each boy has 7 bags . In each bag, there are 7 big cats Each big cat has 7 little cats. Each cat has 4 legs. Question: How many legs are present in bus? Note: There is no driver in the bus [/FONT]