A) 259
B) 249
C) 257
D) 252
Correct Answer: A
Solution :
[a] (i) Number of 3 digit nos. \[=7\times 6\times 5=210\] (ii) Number of 2 digit nos. \[=7\times 6=42\] (iii) Number of 1 digit no. \[=7\] Total number of nos. \[=210+42+7=259\]You need to login to perform this action.
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