To find out how many problems Christian answered correctly, we multiply the total number of problems by his percentage score:

$\text{Correct Answers} = \left(\frac{67}{100}\right) \times 200$

$= 0.67 \times 200$

$= 134$

So, Christian answered 134 problems correctly on his final exam.

Would you like a breakdown of the steps or have any questions?

Related Questions:

1. How many questions did Christian answer incorrectly?
2. If Christian wanted to score at least 75%, how many more questions would he have needed to answer correctly?
3. If each question was worth the same number of points, how many points did Christian earn?
4. What would Christian’s grade be if he answered 150 questions correctly?
5. If another student scored 82% on the same test, how many questions did they get right?

Tip: Always convert percentages to decimals before multiplying for quick calculations.