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  4. Total number of four digit odd numbers that can be formed using 0, 1, 2, 3, 5, 7 are

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Q. Total number of four digit odd numbers that can be formed using $0, 1, 2, 3, 5, 7$ are

Solution:

No. of ways $=4\left(5_{p_{3}}-4_{p_{2}}\right)=192$