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15-01-2018
Mathematics

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what is the probability of randomly choosing a penny and a nickel from a cup of coins that contains a penny nickel a dime and a quarter

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15-01-2018

There are 4 coins in the cup.

Prob( choosing first a penny then a nickel) = 1/4 * 1/3 = 1/12

Prob(choosing first a nickel then a penny) = 1/4 * 1/3 = 1/12

Required probability =1/12 + 1/12 = 1/6 Answer

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