How many 4-digit number formed using the digits 5, 3, 8,0 without repeating any digit would be ODD and also MULTIPLES of 5?
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Step-by-step explanation:
_ _ _ _
since digit is odd and multiple of 5 ,ones place is fixed i.e. _ _ _ 5
since there are 4 digits given and hence 0 cant be in first place..hence only 3,8 can be in first place
3805, 3085
8305, 8035
these are only possible ans.
In higher classes u will learn permutation and combination, there u will enjoy it more.
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