Acer86 wrote:

12. An instructor scored a student’s test of 50 questions by subtracting 2 times the number of incorrect answers from the number of correct answers. If the student answered all of the questions and received a score of 38, how many questions did that student answer correctly?

(A) 19

(B) 38

(C) 41

(D) 44

(E) 46

Try and reason out the answers logically if possible... that will give you a lot of confidence...

To understand the question, say

Had the student answered all correctly, he would have scored 50.

One mistake would have cost him 3 points : 49 points for correct answers, 2 points subtracted for 1 incorrect answer.

This means every one incorrect answer leads to a loss of 3 points.

Since he lost a total of 12 points, he must have had 4 questions incorrect.

So he must have answered 46 questions correctly.

_________________

Karishma

Veritas Prep GMAT Instructor

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