Question : If any four numbers are selected and they are multiplied, then the probability that the last digit will be 1, 3, 5 or 7 is
(A) 4/625
(B) 18/625
(C) 16/625
(D) none of these
Answer : option (C)
Solution :
If any four numbers are selected and they are multiplied, then the probability that the last digit will be 1, 3, 5 or 7 is
with
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