If it is assumed that 60 percent of those who receive a questionnaire by mail will respond and 900 responses are needed, what is the minimum number of questionnaires that should be mailed? Choose the correct choice from the following:  A) 1300  B) 1350  C) 1400  D) 1450  E) 1500
Let x be the minimum number of questionnaires to be mailed.   0.6x = 900   x = 1500   The answer is 1500.
<result>E</result>
If it is assumed that 60 percent of those who receive a questionnaire by mail will respond and 900 responses are needed, what is the minimum number of questionnaires that should be mailed?