Need math help with a problem about possible outcomes

User Generated

zrrxn76

Mathematics

Description

A Social Security number has seven digits. How many Social Security numbers are possible?
A.
B.
C.
D.
E.

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Explanation & Answer

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A Social Security number has seven digits; every digit may be any one from 0 to 9.

Thus total number of possible permutations is =10x10x10x10x10x10x10=10^7

Answer is A

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Anonymous
Excellent resource! Really helped me get the gist of things.

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