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2005 AMC 10B Problem 15

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2005 AMC 10B Problem 15AMC 10 Step by Step

Name: Date: September 13, 2026

Basic Probability · difficulty 2 of 5 · about 3 min · position P11-15

An envelope contains eight bills: $2$ ones, $2$ fives, $2$ tens, and $2$ twenties. Two bills are drawn at random without replacement. What is the probability that their sum is 20$ or more?

A)
${{{\frac{1}{4}}}}$
B)
${{{\frac{2}{5}}}}$
C)
${{{\frac{3}{7}}}}$
D)
${{{\frac{1}{2}}}}$
E)
${{{\frac{2}{3}}}}$

2005 AMC 10B Problem 15

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