12 out of 48 planks in a backyard sale are broken. Which of the following gives the numerical expression for the distribution of unbroken planks among 4 piles equally?
A
(48 - 6)/12
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B
(48 - 12)/4
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C
(12 - 4)/48
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D
(48 - 4)/12
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Solution
The correct option is B (48 - 12)/4 Total number of planks = 48
Number of broken planks = 12
Number of unbroken planks = 48 - 12
Hence, the numerical expression that represents the distribution of unbroken planks into 4 piles is (48 - 12)/4.