Question 1007231
If 95 are taking math and 52 are taking math AND science, then 43 are just taking math.
If 73 are taking science and 52 are taking math AND science, then 21 are just taking science.
Now add 43 + 21 + 52 = 116 students taking either or both math and science.
If there are 147 students, then
147 - 116 = 31 are not taking either.
31/147 is the answer.