SOLUTION: How many license plate numbers can be made by using one letter followed by five digits selected from the digits 0 through 9?
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Question 511802: How many license plate numbers can be made by using one letter followed by five digits selected from the digits 0 through 9?
Answer by John10(297) (Show Source): You can put this solution on YOUR website!
Since the repetition is allowed and you have 26 letters and 10 numbers. It is benefit for use draw a picture like _ _ _ _ _ _
The first one is a letter, we have 26 choices
The second one is a number, we have 10 choices (from 0 to 9)
----third --------------------------------------------------
----fourth one----------------------------------------------
---fifth----------------------------------------------------
---sixth---------------------------------------------------
Thus the number of license plate numbers are 26 * 10 * 10 * 10 * 10 *10 = 26 * 10^5
John10:)
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