SOLUTION: You must click 2 buttons. Each has a 33% chance of working. You must successfully click both to get the machine to work. You cannot click the second button if the first fails. What

Question 935688: You must click 2 buttons. Each has a 33% chance of working. You must successfully click both to get the machine to work. You cannot click the second button if the first fails. What is the total chance of the macine working?
Trying to solve. X means failed attempt, while Y means successful.
x
x
yx
yx
yy
1/5 chance?
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
2 buttons need to be clicked.
x = failed attempt
y = successful attempt
both need to be successful, so the solution will be y * y.

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