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How many telephones of 7 digits can Paltel set up in Gaza city, assuming that the first digit is 2 and the second is 6

How many telephones of 7 digits can Paltel set up in Gaza city, assuming that the first digit is 2 and the second is 6 or 8.
Question 11Answer
a.
7!
b.
48
c.
200000
d.
336

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