Question 9 Answer & Explanation - SAT Algebra

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algebra

If 4 workers can build a wall in 6 days, how many workers to build it in 3 days? (Inverse Proportion)

Correct Answer: C

Choice Choice C is the correct answer.

Concept: More workers = Less time.
Equation: $4 \times 6 = x \times 3$
Simplify: $24 = 3x$
Divide by 3: $x = 8$

Choice Choice A is incorrect because calculation error.

Choice Choice B is incorrect because calculation error.

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