An Amusement Park Charges A $ Entrance Fee. It Then Charges An Additional $ Per Ride. Which Of The Following
There are 144 ways to form a five-digit number that is divisible by 5 using the numerals 0, 1, 2, 3, 4, and 5 without repetition.
For the number to be divisible by 5, its units digit must be either 0 or 5. Since we cannot repeat digits, we have two cases to consider:
Case 1: The units digit is 0.
In this case, we have 5 choices for the units digit (0, 1, 2, 3, or 4). For the remaining four digits, we can choose them in 4! ways (i.e., 4 choices for the first digit, 3 choices for the second digit, 2 choices for the third digit, and 1 choice for the fourth digit).
Therefore, the total number of five-digit numbers that are divisible by 5 and have a units digit of 0 is:
5 × 4! = 120
Case 2: The units digit is 5.
In this case, we have only one choice for the units digit, which is 5. For the remaining four digits, we can choose them in 4! ways as before.
Therefore, the total number of five-digit numbers that are divisible by 5 and have a units digit of 5 is:
1 × 4! = 24
The total number of ways to form a five-digit number that is divisible by 5 without repeating digits is the sum of the numbers from both cases:
120 + 24 = 144
Therefore, there are 144 ways to form a five-digit number that is divisible by 5 using the numerals 0, 1, 2, 3, 4, and 5 without repetition.
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