There are two boxes, one containing 10 r ed balls and the other containing 10 green
balls. You are allowed to move the balls between the boxes so that when you choose a box at
random and a ball at random from the chosen box, the probability of getting a red ball is
maximized. T his maximum probability is
a)1/2 b)14/19 c)37/38 d)3/4

• Transfer 9 balls of red to other bag containing green balls.
  1/2(1+9/19)= 14/19
• 13 years agoHelpfull: Yes(6) No(0)