Hard
Math and Logic
100B and 100W pearls. Maximize chance of picking Black.
Choose an answer
A.50/50 in each
B.100W in one, 100B in other
C.Alternating pearls
D.1B in Sack 1; rest in Sack 2
Answer: 1B in Sack 1; rest in Sack 2
Putting 1 black pearl in Sack A gives a 100% chance if A is picked. Sack B then has 99B/100W (~50%). Total chance: 0.5(1) + 0.5(0.497) = 74.85%.
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