A lottery player must select 3 numbers from the range of 1 to 20. If a number can be repeated, how many different ways can it be combined?
Given that,
A lottery player must select 3 numbers from the range of 1 to 20.
The player can select the 1st number from the range 1 to 20. So there are 20 numbers to select the 1st number.
The player can select the 2nd number from the range 1 to 20. So there are 20 numbers to select the 2nd number because the number can be repeated.
Similarly, the player can select the 3rd number from the range 1 to 20. So there are 20 numbers to select the 3rd number.
Thus, the number of ways to select the number is,
Therefore, the number of ways to select the lottery ticket is 8000.
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