Multiple Choice
A telephone number consists of a sequence of seven digits not starting with a 0 or a 1. How many phone numbers begin with either 7,342, 7,423, or 7,224 ?
A) 2,187 numbers
B) 27,000 numbers
C) 1,000 numbers
D) 3,000 numbers
E) 90 numbers
Correct Answer:
Verified
Correct Answer:
Verified
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