3. In how many ways a four digit even number can be formed by using the digits 2,3,5,8 exactly once?
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Answer:
no,a four digit even number can be formed more than once
1.2358
2.3528
3.5328
4.8352
5.8532
6.3582
7.5382
8.5238
9.3258
and many more can be written
Step-by-step explanation:
you can do this by changing the place of the number,just remember that the last digit should be even
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