Question a-tota
A total of people contributed to a charity event as either a donor or a volunteer. people contributed as a donor. How many people contributed as a volunteer?
A total of 165 people contributed to a charity event as either a donor or a
Easy-difficulty · SAT Math · Linear Equations in One Variable — Word problems → single variable. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice A is correct. It’s given that a total of people contributed to a charity event as either a donor or a volunteer. It’s also given that people contributed as a donor. It follows that , or , people contributed as a volunteer.
Choice B is incorrect. This is the number of people who contributed as a donor, not a volunteer.
Choice C is incorrect. This is the total number of people who contributed as either a donor or a volunteer, not the number of people who contributed as a volunteer.
Choice D is incorrect and may result from conceptual or calculation errors.
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