On a certain quiz with 25 questions, each correct answer is scored 4 points and each incorrect answer is scored -1 point

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A

B

C

D

E

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On a certain quiz with 25 questions, each correct answer is scored 4 points and each incorrect answer is scored -1 point. Questions not answered receive no points. A student who answered 23 questions and had a total score of 82 points answered how many questions correctly?

A - 18
B - 19
C - 20
D - 21
E - 22

Answer: D

Source: GMAT Prep
Source: — Problem Solving |