Mathematics - Permutation & Combination Question with Solution | TestHub

MathematicsPermutation & CombinationFundamental PrincipleEasy2 minQB
MathematicsEasysingle choice

The number of times digit 1 will be written when listing the intergers from 1 to 1000

Options:

Answer:
D
Solution:

total no. of digits used 3000 , every digit used 300 times, one more time 1 used in writing 1000.

Stream:JEESubject:MathematicsTopic:Permutation & CombinationSubtopic:Fundamental Principle
2mℹ️ Source: QB

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