How many 4 digit numbers can be formed from the digits 6,7,8,9 if repetition of digits is not allowed?
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How many 4 digit numbers can be formed from the digits 6,7,8,9 if repetition of digits is not allowed?
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Answer:
6×5×4×3= 360
Step-by-step explanation:
Therefore, the total number of 4 digit numbers are 360.