Correct answer is 1/6
Total 3 digit numbers will be = 900 n(s)=900
Now, need 3 digit number whose common divisor with 36 is only 2
Such numbers will be
102,106,110,....998
:. 225 numbers
But in these 102,114,126,....990
i.e., 75 numbers and to be deleted
∴ Probability = 225 - 75/900
= 150/900
= 1/6
