1.

There is a digit at the 10th place of 6n, in which n is a natural number that is greater than 1, it can be:

A. 1, 2, 3, 4, 5
B. 1, 3, 5, 7, 9
C. 1, 2, 6, 8, 9
D. 1, 3, 5, 8, 9
Answer» B. 1, 3, 5, 7, 9


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