4 x 3 x 2 x 1 = 24 ways
This can be quickly worked out on your calculator using the ' ! ' button after inputting the number of letters/numbers.
You can always check as well, by simply working out every single way.
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Five numbers can be arranged in 5! = 120 ways.
24 ways.
49
60
25 and over ----------------------------------------------------------------------------------------------- The number of ways is 5x4x3x2x1= 120 ways