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Standard XII
Mathematics
Question
Number of natural numbers between
100
and
1000
such that at least one of their digits is
7
, is
225
243
252
None of the above
A
252
B
225
C
243
D
None of the above
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Solution
Verified by Toppr
As the number is between
100
and
1000
, it must have
3
digits.
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