CBSE Class 11-science Answered
How many 5 digit even numbers can be formed using the digits 1,2,5,4,5
Asked by Nishtha Gupta | 25 Jul, 2013, 09:01: PM
Expert Answer
You have probably written the digits wrongly. It should be 1,2,3,4,5.
For 5 digit, even numbers, the fifth digit or the one's place should be wither 2 or 4. Rest all 4 digits can be anything from the 5 digits.
So, the number of 5 digit numbers = 5 x 5 x 5 x5 x 2 (there are 5 possibilities for each digit except ones digit for which there are 2 possibilities)
Hence, number of 5 digit numbers = 1250
Answered by | 26 Jul, 2013, 05:07: AM
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