how many odd numbers less than 5000 can be obtained from the digits 1,2,3,4 and 5 without repetition of numbers
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Respuesta:
So, total 72 numbers can be formed from 1,2,3,4 and 5. All the numbers will be 5 digit odd numbers.
naikalukumay:
less than 5000
The forth place can be occupied by only 4 numbers i.e. 1,2,3 and 4 so that it is a number less than 5000 and still a four digit number.
Now, if the digits can be repeated, then the answer is
4.8.8.8 = 2048
or if they cannot be repeated, then the answer is
4.7.6.5=840
Edit:
I missed that there is no '5′ available and thus I marked an extra digit.
So answers for the above cases would be
4*7*7*7 and 4*6*5*4 respectively.
Now, if the digits can be repeated, then the answer is
4.8.8.8 = 2048
or if they cannot be repeated, then the answer is
4.7.6.5=840
Edit:
I missed that there is no '5′ available and thus I marked an extra digit.
So answers for the above cases would be
4*7*7*7 and 4*6*5*4 respectively.
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