Thanks. Provide the answer as a fraction if you have and post the question under the forum numeric entry NOT Multiple answer choice

Here must go https://gre.myprepclub.com/forum/numeric-e ... estion-19/

I move the post

4/9

numbers divisible by 2={2,4,6,8} (0 excluded as it will not make it a two digit number)
so using combination 10C1*4=40 ways we can form such numbers where ten's digit is divisible by 2
total ways of forming a 2 digit number= 9C1 * 10C1 = 90
answer = 40/90 or 4/9

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