Question

how many 3 digit numbers can be formed from the numbers 1,5,6,7,8 if no repetition is allowed?

Answer 1

5.4.3 = 60

Answer 2

Five choices for the first number.
Four choices for the second number.
Three choices for the third number.

So 5 * 4 * 3 = 60 possible numbers.

Answer 3

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Answer 4

it works lol