Final answer:
To find the number of problems on the test, set up a proportion using the grade received. The student missed 42 problems and received a grade of 48%. Solving for x, the number of problems on the test is 87. Correct option is A) 87 problems
Step-by-step explanation:
To find the number of problems on the test, we can set up a proportion using the grade received. Since the student missed 42 problems and received a grade of 48%, we can set up the proportion:
(42 / x) = (48 / 100)
Cross multiplying, we get:
48x = 4200
Dividing both sides by 48, we get:
x = 87
Therefore, there were 87 problems on the test.