No matter how many circles there are 80% of the circles will be blue as 4 to 5 translates to 8 to 10 which is 80%. The remaining circle ( the other 20%) can be any color but blue.
Speed: 30mi/sec Seconds in one minute: 60 Seconds in 6 minute: 60 x 6 = 360 seconds take the speed of 30miles / seconds and times it with 360, and you get a total distant traveled: 10800 miles
