1.

The number of even numbers greater than 300 can be formed with the digits `1, 2, 3, 4, 5` without repetion is

Answer» Number of 3 digit numbers=>`3xx3`(when ending with 2)+`2xx3`(when ending with 4)=`15`
Number of 4 digit numbers=>`2xx3xx4xx2=48`
number of 5 digit numbers=>`1xx2xx3xx4xx2=48`
note for even numbers last digit can be occupied with 2 or 4.
total number of numbers=>`15+48+48=111`


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