Hi @jaycee7viral this is my answer for the question.
Answer
I will mix the marbles normaly. 25 black and 25 red marbles each bowl. So no matter what bowl I will get I have 50% chance of getting a red marble.
How I came up to that answer:
Because thats how we live our life. We don't know if the road(the bowl) we choose will lead us to the right way and the desicions(the marble) we choose will keep us alive. Living our life today is enough reason to see tommorow.
Thank you. :) Hoping you like it.