On last week's math test, 32 students received passing grades and 16 students did not receive passing grades. What is the ratio of the number of students who passed the test to the total number of students who took the test?
A. 1/2
B. 2/3
C. 3/2
D. 2/1
B. 2/3
To find the ratio of students who passed the test to the total number of students who took the test, we need to add the number of students who passed the test (32) and the number of students who did not pass the test (16) to get the total number of students who took the test (32 + 16 = 48).
So, the ratio is 32/48 which simplifies to 2/3.