How to solve a Galileo puzzle. #shorts

How to solve this

3 students {A, B, C} tackle a puzzle together and offers a solution upon which majority of the 3agrees. Probability of A solving the puzzle correctly is p. Probability of B solving the puzzle correctlyis also p. Cisa dumb student who randomly supports the solution of either A or B. There is one morestudent D, whose probability of solving the puzzle correctly is once again, p. Out of the 3 memberteam {A, B, C} and one member team {D}, which one is more likely to solve the puzzle correctly.

Scientist Galileo once said " "Give me a long road and a place to stand. I can topple the earth". What type of lever was Galileo talking about ? Explain.

In chlorine atom, how many electrons are short of the argon configuration?