Free Practice Question
PS · Problem Solving
555-605
Probability
Sofia purchased 5 black pencils along with a certain quantity of red and green pencils, each costing 20 cents, and carried them in a single bag. Once she arrived home, she randomly selected one pencil to jot down a message and then returned it to the bag. Later, she needed to write another message and again picked a pencil from the bag. If the probability that both messages were written with black pencils is 1/25, what was the total amount she spent on all the pencils?
Answer Choices
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$4
B
$4.2
C
$4.4
D
$4.6
E
$5.0
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Explanation
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Comments
2
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L
LauraApr 8, 2024
thanks!
Details
Difficulty
555-605
Type
PS
Category