How many 7-digit phone number can be found with the digits, 0, 1,3,4,5,6,7,8, and 9, assuming that no digits is used more than once and the first digit is not 0 or 1?
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How many 7-digit phone number can be found with the digits, 0, 1,3,4,5,6,7,8, and 9, assuming that no digits is used more than
Answer:
The Answer is = 14/120
Solution:
Cn'A 6 = 14/120
8