Julian scored 85% on his last math test. If he missed 6 problems, how many total questions were on the test?
A 20
B 30
C 40
D 70
100 - 85 = 15
.15 n = 6
n = 600/15 = 40
To find the total number of questions on the test, we need to determine the number of problems Julian missed as a percentage of the total number of questions.
We know that Julian scored 85% on the test, which means he got 85% of the questions correct.
Let's represent the total number of questions as "x."
If Julian missed 6 problems on the test, he got x - 6 questions correct.
We can set up an equation:
(x - 6) / x = 85% / 100%
Simplifying the equation, we get:
(x - 6) / x = 0.85
To solve for x, we can cross-multiply:
0.85x = x - 6
0.85x - x = -6
0.15x = -6
Dividing both sides of the equation by 0.15, we get:
x = -6 / 0.15
x ≈ 40
Therefore, the total number of questions on the test is approximately 40.
So, the answer is C. 40 questions.