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Maths
7. Permutations and Combinations
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Q31 of 64 Page 122

A five digit number divisible by 3 is to be formed using the numbers 0, 1, 2, 3, 4 and 5 without repetitions. The total number of ways this can be done is

5-digit numbers can be formed using digits 0, 1, 2, 4, 5



4x4x3x2x1=96


5-digit numbers can be formed using digits 1, 2,3, 4, 5=5!


Total number of ways=5! +96


=216

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Questions · 64
7. Permutations and Combinations
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