RC + 2 = 3
Don’t stop here assuming that you’re done. The third sentence tells you, “All but three of his patients are coming for yearly
checkups.” You can make another deduction here. If all but three are coming for yearly checkups, then a minimum of one patient
must be coming for a checkup and exactly three are coming for other purposes.
YC + 3 = 4
Or
The answer, therefore, is (B) 4. Dr. Roosevelt must see a minimum of four patients to meet the specified conditions, but does not
have to see more than four patients to meet the specified conditions.