A) 156
B) 160
C) 150
D) None of these
Correct Answer: A
Solution :
Number of 1 digit numbers \[{{=}^{6}}{{P}_{1}}\] Number of 2 digit numbers \[{{=}^{6}}{{P}_{2}}\] Number of 3 digit numbers \[{{=}^{6}}{{P}_{3}}\] The required number of numbers\[=6+30+120=156\].You need to login to perform this action.
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