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Permutations — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSPermutations1 Mark
Question
Write the number of 5 digit numbers that can be formed using digits 0, 1 and 2.
✓

Answer

Total number of digits = 3
Now, zero can not be first digit of the 5 digit numbers.
$\therefore$ The number of 5 digit numbers = 2 × 3 × 3 × 3 × 3
= 2 × 34

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