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How many 7 digit telephone numbers can be formed from the digits 0,1,2,...,9, where each telephone number begins with digit 2?

How many 7 digit telephone numbers can be formed from the digits 0,1,2,...,9, where each telephone number begins with digit 2?
asked 113k views
5 votes
How many 7 digit telephone numbers can be formed from the digits 0,1,2,...,9, where each telephone number begins with digit 2?

asked
User Vcuankit
by
8.1k points

1 Answer

2 votes

Answer: A lot

Explanation:

answered
User Alexey Chernikov
by
8.2k points
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