Engineering Board Exam Reviewer · Word Problems: Systems of Equations · easy
There are two types of questions in an examination: Easy Questions worth 10 points each and Difficult Questions worth 15 points each. It takes 3 minutes to answer each Easy Question and 6 minutes to answer each Difficult Question. There are 16 questions in the exam, good for 60 minutes. Find the maximum score in the exam.
- 200
- 190
- 185
- 180
Answer
D. 180
Solution
Let A=easy questions, B=difficult questions. A+B=16; 3A+6B=60 (minutes). Solving gives A=12, B=4. Maximum score = 10(12)+15(4) = 180.
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