GRE-Math-Questions-to-Know-by-Test-Day-2nd-Edition_pag128

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Multiple-Choice Questions with One or More Correct Answers ‹ 119
 389. To include a penalty for guessing, the scoring formula for a 60-question, 
multiple-choice test is s r w1
4
= − , where s is the score on the test, r is the 
number of correct responses, and w is the number of incorrect responses. If 
a student answers all 60 questions, which of the following scores could be 
the student’s score? Indicate all such scores.
 (A) −20 
 (B) −15 
 (C) −5
 (D) 10 
 (E) 32
 (F) 65 
 390. Which of the following ratios is equivalent to the ratio 7:6? Indicate all 
such ratios.
 (A) 45:30
 (B) 11
8
: 3
8
 
 (C) 13
4
:11
2
 
 (D) 9.6:7.2 
 391. Hiroshi has three boxes of markers. Box 1 contains only black markers, 
Box 2 contains only red markers, and Box 3 contains only blue markers. 
The covers on the box have labels. However, when the covers were put on 
the boxes, each box ended up with an incorrect label accidentally. Hiroshi 
opens the box marked “red markers” and finds that the box contains black 
markers. Which of the following statements must be true? Indicate all such 
statements.
 (A) Box 1 is labeled “red markers.”
 (B) Box 1 is labeled “blue markers.”
 (C) Box 2 is labeled “black markers.”
 (D) Box 2 is labeled “blue markers.”
 (E) Box 3 is labeled “blue markers.”
 (F) Box 3 is labeled “black markers.” 
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