# If it is assumed that 60 percent of those who receive a questionnaire…

# Solution:

We are given that 60% of those who receive a questionnaire will respond. We must determine how many questionnaires need to be mailed to receive 300 responses. If we let n = the number of questionnaires sent, we can create the following equation:

0.6n = 300

6n = 3,000

n = 500

**Answer: D **

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Scott Woodbury-Stewart is the founder & CEO of Target Test Prep. A passionate teacher who is deeply invested in the success of his students, Scott began his career teaching physics, chemistry, math, and biology. Since then, he has spent more than a decade helping students gain entry into the world’s top business schools, logging 10,000+ hours of GMAT instruction. Scott also served as lead content developer and curriculum architect for the revolutionary quant course Target Test Prep GMAT Quant.