Each student at State college has a student I. d number consisting of eight digits ( the first digit is nonzero, and digits may be repeated) followed by two of the letters A, B,C, D,and E (letters may not be repeated). How many different student numbers are possible

1,800,000,000 ways

Explanation:

Given

Required

Number of ways of selection

From the 8 digits; the first must be nonzero (i.e. any of 1 - 9).

There are 9 ways of selecting this:

The other 7 digits could be any of the 10 digits and there may be repetition.

Each of the digits can be selected in 10 ways. So, the number of ways of selecting the 7 digits is:

For the alphabets:

The first can be selected from the letters while the second can be selected from the remaining

So, the number of ways the alphabets can be selected is:

Total number of selection is:

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.