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Combination

Total 4 digit...

Question

Total 4 digit odd numbers that can be formed, if the digits used is not to be repeated again is

A

2240

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B

2420

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C

2440

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D

2520

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Solution

The correct option is A 2240
The number of four digit numbers which satisfy the above condition = $8 \times 8 \times 7 \times 5 = 2240$

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