SOLUTION: can someone help please
How many 3-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6 if repetition of digits is not allowed?
a. 210
b. 5
c. 6
d. 343
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Question 162582: can someone help please
How many 3-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6 if repetition of digits is not allowed?
a. 210
b. 5
c. 6
d. 343
Answer by SAT Math Tutor(36) (Show Source): You can put this solution on YOUR website!
You just need to use the permutations formula. You have a total of 7 digits and you are choosing 3 of these. If you have a TI calculator you can enter 7 nPr 3 or use this formula:
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