Average SPEED IS 60 KMPH, I.E 60 KMS PER 60 MIN... SO 1 KM IN 1 MIN. AS SQUARE SIDES ARE 1 KM EACH..TOTAL TIME TAKEN SHOULD BE 4 MIN. NOW FIRST 2 SIDES..IT IS MPH, NOT KMPH 1 MPH = 1.609344 KMPH ...

Everyone other than me is wrong so far, since they are treating speed as a single dimension instead of treating it properly as two (time and distance).  In order to travel at 60 km/h, the man mus...

UNIX:- free- open - multiuser and multitasking- file system in hierachical model (each file is a chil of another one)- no viruses ( because of the shell)- more stable- when it starts, it only runs nee...

UNIX is more secured Operating System.