A) \[\frac{2}{3}\]
B) \[\frac{7}{48}\]
C) \[\frac{5}{42}\]
D) \[\frac{5}{108}\]
Correct Answer: C
Solution :
[c] Total no. of 3-digit numbers \[=9\times 8\times 7=504\] For product to be odd, we have to choose only from odd numbers. \[\therefore \] Total no. of 3-digit no, whose product are odd \[=5\times 4\times 3=60\] \[\therefore \] Required probability \[=\frac{60}{504}=\frac{5}{42}\]
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