The number of 5 digit number that contain 7 exactly
once is.... VIDEO
The number of 5 digit number that contain 7 exactly
\( \mathrm{P} \)
once is
W
(1) \( (41)\left(9^{3}\right) \)
(2) \( (37)\left(9^{3}\right) \)
(3) \( (7)\left(9^{4}\right) \)
(4) \( (41)\left(9^{4}\right) \)
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