Skeletons and Bows

In Minecraft game the chance of a skeleton drop a bow is 1 40 \frac {1}{40} . And the chance of this bow drops with an enchantment is 1 5 \frac {1}{5} . What is the chance of a skeleton drop an enchanted bow ?

1 200 \frac {1}{200} 1 5 \frac {1}{5} 1 20 \frac {1}{20} 1 40 \frac {1}{40}

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1 solution

Noel Lo
May 27, 2015

The two events are independent of each other so the combined probability is 1 40 × 1 5 = 1 200 \frac{1}{40} \times \frac{1}{5} = \frac{1}{200}

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