Mathematics - Permutation & Combination Question with Solution | TestHub

MathematicsPermutation & CombinationArrangement under ConstraintMedium2 minPYQ_2021

MathematicsMediumnumerical

The number of times the digit $3$ will be written when listing the integers from $1$ to $1000$ is

Answer:

300.00

Solution:

$3_{- -} = 10 \times 10 = 100$

$_3_{-} = 10 \times 10 = 100$

$- - 3 = 10 \times 10 = 100$

Total is $300$ .

Stream:JEESubject:MathematicsTopic:Permutation & CombinationSubtopic:Arrangement under Constraint

⏱ 2mℹ️ Source: PYQ_2021

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