Asked by Kevin
Bob received 6 points for each question he answered correctly on Part 1 of a test and 4 points for each question he answered correctly on Part 2. If he answered 33 questions correctly and received a total of 168 points, how many questions did he answer correctly on Part 1?
Answers
Answered by
MathMate
Same as the bike problem.
If he answered correctly all part 2 (4 points each) questions, then he would have got 4*33=132 points. Since he got 168 points, he got 168-132=36 points left over. Since part 1 questions has 2 points more each, he must have got 36/2=18 part 1 questions, and 33-18=15 part 2 questions.
You can also do this using system of equations if you have a pen and paper.
If he answered correctly all part 2 (4 points each) questions, then he would have got 4*33=132 points. Since he got 168 points, he got 168-132=36 points left over. Since part 1 questions has 2 points more each, he must have got 36/2=18 part 1 questions, and 33-18=15 part 2 questions.
You can also do this using system of equations if you have a pen and paper.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.